chore: bump version to 0.28.4

Bumps runtime- and build-reachable dependencies to patched versions and
adds pnpm overrides for transitive advisories. Clears all high/critical
findings (1 critical + 12 high -> 0); remaining moderates/lows are
dev-tooling only and stripped from the production image by pnpm prune.

Direct bumps:
- drizzle-orm ^0.44.7 -> ^0.45.2  (SQL injection via unescaped identifiers, GHSA-gpj5-g38j-94v9)
- @sveltejs/kit ^2.53.4 -> ^2.63.1 (adapter-node BODY_SIZE_LIMIT bypass, GHSA-2crg-3p73-43xp)
- vite ^7.3.1 -> ^7.3.5, vitest/@vitest/coverage-v8 ^3.2.4 -> ^3.2.6 (dev-server file read; vitest UI RCE)

Transitive overrides:
- devalue >=5.8.1   (DoS via sparse-array deserialization, GHSA-77vg-94rm-hx3p)
- path-to-regexp@8 >=8.4.0 (ReDoS via express/router under @modelcontextprotocol/sdk, GHSA-j3q9-mxjg-w52f)
- fast-uri >=3.1.2  (path traversal / host confusion via ajv, GHSA-q3j6-qgpj-74h6)

Verified: pnpm check (0 errors), 264 unit tests pass, production build succeeds.

.env.example

@@ -22,3 +22,11 @@ NODE_ENV=development
 # AUTH_OIDC_CLIENT_ID=
 # AUTH_OIDC_CLIENT_SECRET=
 # AUTH_OIDC_DISPLAY_NAME=SSO
+
+# --- Email Notifications (optional, auto-enabled when SMTP_HOST is set) ---
+
+# SMTP_HOST=smtp.example.com
+# SMTP_PORT=587
+# SMTP_USER=
+# SMTP_PASS=
+# SMTP_FROM=Crumbs <noreply@example.com>

.github/workflows/bump.yml

@@ -48,17 +48,83 @@ jobs:
     needs: bump
     uses: ./.github/workflows/ci.yml
 
-  release:
-    name: Build & Push Docker Image
-    runs-on: ubuntu-latest
+  build:
+    name: Build Docker (${{ matrix.platform }})
     needs: [bump, ci]
+    permissions:
+      packages: write
+    strategy:
+      fail-fast: true
+      matrix:
+        include:
+          - platform: linux/amd64
+            runner: ubuntu-latest
+          - platform: linux/arm64
+            runner: ubuntu-24.04-arm
+    runs-on: ${{ matrix.runner }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ needs.bump.outputs.tag }}
+
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/${{ github.repository }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push by digest
+        id: build
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          platforms: ${{ matrix.platform }}
+          labels: ${{ steps.meta.outputs.labels }}
+          provenance: false
+          cache-from: type=gha,scope=${{ matrix.platform }}
+          cache-to: type=gha,scope=${{ matrix.platform }},mode=max
+          outputs: type=image,"name=ghcr.io/${{ github.repository }}",push-by-digest=true,name-canonical=true,push=true
+
+      - name: Export digest
+        run: |
+          mkdir -p ${{ runner.temp }}/digests
+          digest="${{ steps.build.outputs.digest }}"
+          touch "${{ runner.temp }}/digests/${digest#sha256:}"
+
+      - name: Upload digest
+        uses: actions/upload-artifact@v4
+        with:
+          name: digest-${{ matrix.runner }}
+          path: ${{ runner.temp }}/digests/*
+          if-no-files-found: error
+          retention-days: 1
+
+  merge:
+    name: Merge manifests & release
+    runs-on: ubuntu-latest
+    needs: [bump, build]
     permissions:
       contents: write
       packages: write
     steps:
       - uses: actions/checkout@v4
+
+      - name: Download digests
+        uses: actions/download-artifact@v4
         with:
-          ref: ${{ needs.bump.outputs.tag }}
+          path: ${{ runner.temp }}/digests
+          pattern: digest-*
+          merge-multiple: true
 
       - name: Extract metadata
         id: meta
@@ -80,15 +146,11 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Build and push Docker image
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
+      - name: Create manifest list and push
+        working-directory: ${{ runner.temp }}/digests
+        run: |
+          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
+            $(printf 'ghcr.io/${{ github.repository }}@sha256:%s ' *)
 
       - name: Create GitHub Release
         uses: softprops/action-gh-release@v2
@@ -99,7 +161,7 @@ jobs:
   pin-docker-compose:
     name: Pin docker-compose to released version
     runs-on: ubuntu-latest
-    needs: [bump, release]
+    needs: [bump, merge]
     permissions:
       contents: write
     steps:

.github/workflows/ci.yml

@@ -2,7 +2,7 @@ name: CI
 
 on:
   push:
-    branches: [main, 'claude/**']
+    branches: [main]
   pull_request:
     branches: [main]
   workflow_call:
@@ -19,8 +19,6 @@ jobs:
       - uses: actions/checkout@v4
 
       - uses: pnpm/action-setup@v4
-        with:
-          version: latest
 
       - uses: actions/setup-node@v4
         with:
@@ -37,8 +35,6 @@ jobs:
       - uses: actions/checkout@v4
 
       - uses: pnpm/action-setup@v4
-        with:
-          version: latest
 
       - uses: actions/setup-node@v4
         with:
@@ -68,8 +64,6 @@ jobs:
       - uses: actions/checkout@v4
 
       - uses: pnpm/action-setup@v4
-        with:
-          version: latest
 
       - uses: actions/setup-node@v4
         with:
@@ -121,5 +115,15 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Build Docker image
-        run: docker build -t crumbs:ci .
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: false
+          provenance: false
+          tags: crumbs:ci
+          cache-from: type=gha,scope=ci-docker
+          cache-to: type=gha,scope=ci-docker,mode=max

.github/workflows/release.yml

@@ -13,13 +13,77 @@ jobs:
   ci:
     uses: ./.github/workflows/ci.yml
 
-  release:
-    name: Build & Push Docker Image
-    runs-on: ubuntu-latest
+  build:
+    name: Build Docker (${{ matrix.platform }})
     needs: ci
+    strategy:
+      fail-fast: true
+      matrix:
+        include:
+          - platform: linux/amd64
+            runner: ubuntu-latest
+          - platform: linux/arm64
+            runner: ubuntu-24.04-arm
+    runs-on: ${{ matrix.runner }}
     steps:
       - uses: actions/checkout@v4
 
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/${{ github.repository }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push by digest
+        id: build
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          platforms: ${{ matrix.platform }}
+          labels: ${{ steps.meta.outputs.labels }}
+          provenance: false
+          cache-from: type=gha,scope=${{ matrix.platform }}
+          cache-to: type=gha,scope=${{ matrix.platform }},mode=max
+          outputs: type=image,"name=ghcr.io/${{ github.repository }}",push-by-digest=true,name-canonical=true,push=true
+
+      - name: Export digest
+        run: |
+          mkdir -p ${{ runner.temp }}/digests
+          digest="${{ steps.build.outputs.digest }}"
+          touch "${{ runner.temp }}/digests/${digest#sha256:}"
+
+      - name: Upload digest
+        uses: actions/upload-artifact@v4
+        with:
+          name: digest-${{ matrix.runner }}
+          path: ${{ runner.temp }}/digests/*
+          if-no-files-found: error
+          retention-days: 1
+
+  merge:
+    name: Merge manifests & release
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Download digests
+        uses: actions/download-artifact@v4
+        with:
+          path: ${{ runner.temp }}/digests
+          pattern: digest-*
+          merge-multiple: true
+
       - name: Extract metadata
         id: meta
         uses: docker/metadata-action@v5
@@ -40,15 +104,11 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Build and push Docker image
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
+      - name: Create manifest list and push
+        working-directory: ${{ runner.temp }}/digests
+        run: |
+          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
+            $(printf 'ghcr.io/${{ github.repository }}@sha256:%s ' *)
 
       - name: Create GitHub Release
         uses: softprops/action-gh-release@v2
@@ -58,7 +118,7 @@ jobs:
   pin-docker-compose:
     name: Pin docker-compose to released version
     runs-on: ubuntu-latest
-    needs: release
+    needs: merge
     permissions:
       contents: write
     steps:

.github/workflows/screenshots.yml

@@ -0,0 +1,45 @@
+name: Screenshots
+
+on:
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  screenshots:
+    name: Capture Landing Page Screenshots
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: pnpm
+
+      - run: pnpm install --frozen-lockfile
+
+      - name: Install Playwright with system deps
+        run: pnpm exec playwright install --with-deps chromium
+
+      - name: Build app
+        run: pnpm build
+        env:
+          DATABASE_URL: ./data/screenshots.db
+
+      - name: Capture screenshots
+        run: pnpm exec tsx scripts/screenshots.ts
+        env:
+          DATABASE_URL: ./data/screenshots.db
+
+      - name: Commit and push
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add website/assets/screenshot-*.png
+          git diff --cached --quiet && echo "No changes" && exit 0
+          git commit -m "chore: update landing page screenshots [skip ci]"
+          git push

.gitignore

@@ -44,3 +44,7 @@ todo.md
 
 # Worktrees
 .worktrees/
+
+# Superpowers brainstorm artifacts
+.superpowers/
+package-lock.json

CLAUDE.md

@@ -146,7 +146,7 @@ A `Makefile` wraps all common tasks for tool-agnostic usage. Run `make help` to
 
 GitHub Actions with two workflows:
 
-**CI** (`.github/workflows/ci.yml`) — runs on push to `main`/`claude/**` and PRs to `main`:
+**CI** (`.github/workflows/ci.yml`) — runs on push to `main` and PRs to `main` (branch work is validated once via the PR event, avoiding duplicate push+PR runs):
 1. **Lint & Type Check** — `pnpm check`
 2. **Unit Tests** — `pnpm test:unit`
 3. **Build** — `pnpm build` (depends on steps 1+2)
@@ -163,6 +163,13 @@ GitHub Actions with two workflows:
 
 **Docker**: Multi-stage Dockerfile (node:22-slim), exposes port 3000, persists data to `/data` volume.
 
+## Database schema changes
+
+When adding or modifying tables in `src/lib/server/db/schema.ts`:
+
+- **If the table has a foreign key to `users`**: update `deleteUser()` in `src/lib/server/auth.ts` to delete from the new table before the user row is removed. Order matters — delete child rows before parent rows.
+- **If the table has a foreign key to `notes`**: either add `onDelete: 'cascade'` in the schema definition, or add explicit cleanup in the note deletion logic.
+
 ## Testing philosophy: BDD/TDD
 
 Write tests first or alongside features. Tests serve as living documentation of expected behavior.
@@ -180,6 +187,7 @@ Write tests first or alongside features. Tests serve as living documentation of
 - Test database: `./data/test-crumbs.db` (cleaned via `global-setup.ts`)
 - Auth fixture: `tests/e2e/helpers/fixtures.ts` provides `authenticatedPage` (handles setup/login race conditions across parallel workers)
 - Auth tests use `test.describe.serial` because they depend on sequential database state
+- **Offline/online tests**: After `setOffline(false)`, always manually dispatch the `online` event via `page.evaluate(() => window.dispatchEvent(new Event('online')))` — Playwright doesn't reliably emit it in headless/CI environments, causing flaky `waitForResponse` timeouts
 
 ### Gherkin-style Given/When/Then
 

Dockerfile

@@ -2,7 +2,7 @@
 FROM node:22-slim AS build
 
 WORKDIR /app
-RUN corepack enable && corepack prepare pnpm@latest --activate
+RUN corepack enable && corepack prepare pnpm@9 --activate
 
 # Copy package files
 COPY package.json pnpm-lock.yaml ./

README.md

@@ -11,6 +11,10 @@
 
 A self-hostable, offline-first note-taking app that respects your privacy. Part of the [Bretzel](https://bretzel.app) app universe.
 
+<p align="center">
+  <img src="website/assets/screenshot-grid.png" alt="Crumbs notes grid view" width="720">
+</p>
+
 ## Install
 
 ### Docker (Recommended)
@@ -46,6 +50,21 @@ volumes:
 
 Google and GitHub OAuth are also supported. See [docs/AUTH.md](docs/AUTH.md) for all providers and setup guides.
 
+#### With Email Notifications (optional)
+
+Add SMTP settings to enable email notifications (share alerts, welcome emails, security alerts):
+
+```yaml
+environment:
+  - SMTP_HOST=smtp.example.com
+  - SMTP_PORT=587
+  - SMTP_USER=your-username
+  - SMTP_PASS=your-password
+  - SMTP_FROM=Crumbs <noreply@example.com>
+```
+
+Auto-enabled when `SMTP_HOST` is set. Users can opt out in Settings > Preferences. See [docs/DEPLOYMENT.md](docs/DEPLOYMENT.md#email-notifications-optional) for details.
+
 ### Manual (Node.js)
 
 ```bash
@@ -75,6 +94,9 @@ pnpm build         # Production build
 - Rich notes with Markdown, checklists, image attachments, and 12 color themes
 - Organize with #tags, pinning, archive, and trash
 - Full-text search across titles, content, and tags
+- Note version history — browse and restore previous versions
+- Share notes with other users on the same instance
+- Email notifications for shares, security alerts, and account events (optional SMTP)
 - PWA — installable, works offline via IndexedDB + LWW CRDT sync
 - MCP server — let AI assistants (Claude Code, etc.) manage your notes
 - Multi-user auth (Argon2) with optional OAuth/SSO (Google, GitHub, OIDC)

docker-compose.yml

@@ -1,6 +1,6 @@
 services:
   crumbs:
-    image: ghcr.io/bretzel-app/crumbs:0.19.2
+    image: ghcr.io/bretzel-app/crumbs:0.28.3
     container_name: crumbs
     ports:
       - "3000:3000"
@@ -11,6 +11,21 @@ services:
       - DATA_DIR=/data
       - DATABASE_URL=/data/crumbs.db
       - ORIGIN=${ORIGIN:-http://localhost:3000}
+      # OAuth / SSO (optional — providers auto-enable when configured)
+      - AUTH_GOOGLE_CLIENT_ID=${AUTH_GOOGLE_CLIENT_ID:-}
+      - AUTH_GOOGLE_CLIENT_SECRET=${AUTH_GOOGLE_CLIENT_SECRET:-}
+      - AUTH_GITHUB_CLIENT_ID=${AUTH_GITHUB_CLIENT_ID:-}
+      - AUTH_GITHUB_CLIENT_SECRET=${AUTH_GITHUB_CLIENT_SECRET:-}
+      - AUTH_OIDC_ISSUER=${AUTH_OIDC_ISSUER:-}
+      - AUTH_OIDC_CLIENT_ID=${AUTH_OIDC_CLIENT_ID:-}
+      - AUTH_OIDC_CLIENT_SECRET=${AUTH_OIDC_CLIENT_SECRET:-}
+      - AUTH_OIDC_DISPLAY_NAME=${AUTH_OIDC_DISPLAY_NAME:-}
+      # Email notifications (optional — auto-enabled when SMTP_HOST is set)
+      - SMTP_HOST=${SMTP_HOST:-}
+      - SMTP_PORT=${SMTP_PORT:-587}
+      - SMTP_USER=${SMTP_USER:-}
+      - SMTP_PASS=${SMTP_PASS:-}
+      - SMTP_FROM=${SMTP_FROM:-}
     restart: unless-stopped
 
 volumes:

docs/API.md

@@ -410,6 +410,114 @@ Owner can remove anyone. Collaborator can only remove self (leave). Use `userId=
 
 ---
 
+## Sharing
+
+### `POST /api/notes/{id}/share`
+
+Create a public share link
+
+Owner-only. Creates a public share URL for the note. Idempotent — returns existing token if already shared.
+
+**Parameters:**
+
+| Name | In | Type | Required | Description |
+|------|----|------|----------|-------------|
+| `id` | path | string | yes |  |
+
+**Response:** `201`
+
+```json
+{
+  "token": "token",
+  "url": "url"
+}
+```
+
+**Errors:** `404` Note not found or not owner
+
+---
+
+### `DELETE /api/notes/{id}/share`
+
+Revoke a public share link
+
+Owner-only. Removes the public share link for the note.
+
+**Parameters:**
+
+| Name | In | Type | Required | Description |
+|------|----|------|----------|-------------|
+| `id` | path | string | yes |  |
+
+**Response:** `204`
+
+**Errors:** `404` Note not found or not owner
+
+---
+
+### `GET /api/shared/{token}`
+
+Get a shared note (public)
+
+No authentication required. Returns the note content for a valid share token. Rate limited to 60 requests per minute per IP.
+
+> No authentication required.
+
+**Parameters:**
+
+| Name | In | Type | Required | Description |
+|------|----|------|----------|-------------|
+| `token` | path | string | yes |  |
+
+**Response:** `200`
+
+```json
+{
+  "title": "title",
+  "content": "content",
+  "checklistMode": true,
+  "color": "default",
+  "attachments": [
+    {
+      "id": "id",
+      "filename": "filename",
+      "mimeType": "mimeType",
+      "size": 1,
+      "featured": true,
+      "createdAt": "2025-01-01T00:00:00.000Z"
+    }
+  ],
+  "createdAt": "2025-01-01T00:00:00.000Z",
+  "updatedAt": "2025-01-01T00:00:00.000Z"
+}
+```
+
+**Errors:** `404` Invalid token or note is trashed, `429` Rate limit exceeded
+
+---
+
+### `GET /api/shared/{token}/attachment/{attachmentId}`
+
+Get an attachment from a shared note (public)
+
+No authentication required. Serves image binary for an attachment belonging to the shared note. Rate limited.
+
+> No authentication required.
+
+**Parameters:**
+
+| Name | In | Type | Required | Description |
+|------|----|------|----------|-------------|
+| `token` | path | string | yes |  |
+| `attachmentId` | path | string | yes |  |
+| `thumb` | query | string | no | Set to '1' to get the thumbnail version (1) |
+
+**Response:** `200`
+
+**Errors:** `404` Invalid token, note trashed, or attachment not found, `429` Rate limit exceeded
+
+---
+
 ## Users
 
 ### `GET /api/users/search`

docs/ARCHITECTURE.md

@@ -100,8 +100,24 @@ Key tables:
 - `api_keys` - MCP API keys (SHA-256 hashed, prefix for display)
 - `note_collaborators` - Sharing relationships (noteId + userId + addedBy)
 - `note_user_state` - Per-user pin/archive/sortOrder for shared notes
+- `shared_notes` - Public share links (noteId → token, 1:1 with cascade delete)
 - `sync_log` - Sync operation history
 
+### Nested Checklist Serialization
+
+Checklist items are stored as plain text in the note `content` field, one item per line. Child items use a 2-space indent prefix:
+
+```
+- [ ] Parent item
+  - [ ] Child item
+  - [x] Checked child item
+- [x] Another parent
+```
+
+- A line starting with `  - [ ]` or `  - [x]` (2 spaces) is parsed as a child of the preceding top-level item.
+- The `parentId` field on `ChecklistItem` is **runtime-only** — it is derived from position during parsing and never stored explicitly.
+- This format is fully backward compatible: flat checklists (no indented lines) parse identically to before.
+
 ### Collaboration Access Control
 
 Notes support sharing with other users on the same instance:
@@ -135,6 +151,16 @@ MCP tool handlers ┘
 ### Tools (14)
 `list_notes`, `get_note`, `create_note`, `update_note`, `trash_note`, `restore_note`, `archive_note`, `unarchive_note`, `delete_note`, `search_notes`, `list_tags`, `pin_note`, `reorder_notes`, `upload_image`
 
+## Dark Mode
+
+Theme switching uses CSS variable overrides on the `<html>` element:
+
+- **CSS**: `[data-theme="dark"]` attribute on `<html>` overrides all `--bg-*`, `--text-*`, `--border-*`, and `--primary-*` variables defined in `src/app.css`
+- **Persistence**: preference stored as `theme` in the existing `userPreferences` key-value system (values: `"system"` | `"light"` | `"dark"`)
+- **FOUC prevention**: a blocking inline `<script>` in `app.html` reads the preference from localStorage and sets `data-theme` before any content renders
+- **Reactivity**: a `$effect` in the root `+layout.svelte` watches the theme store and updates `document.documentElement.dataset.theme` on change
+- **Note card colors**: `getNoteColor()` in `src/lib/utils/colors.ts` accepts a `dark` boolean and returns the appropriate color variant per theme
+
 ## File Organization
 
 ```

docs/DEPLOYMENT.md

@@ -114,6 +114,20 @@ node build
 
 Google, GitHub, and generic OIDC (Authentik, Keycloak, Okta, etc.) are supported. Providers are auto-enabled when their env vars are set. See **[AUTH.md](AUTH.md)** for environment variables, callback URLs, provider-specific setup guides, and troubleshooting.
 
+### Email Notifications (optional)
+
+Email notifications are auto-enabled when `SMTP_HOST` is set. See [FEATURES.md](FEATURES.md#note-sharing--collaboration) for the full list of notification types.
+
+| Variable | Default | Description |
+|----------|---------|-------------|
+| `SMTP_HOST` | — | SMTP server hostname (e.g. `smtp.example.com`) |
+| `SMTP_PORT` | `587` | SMTP port (`587` for STARTTLS, `465` for SSL) |
+| `SMTP_USER` | — | SMTP username (optional for unauthenticated relays) |
+| `SMTP_PASS` | — | SMTP password |
+| `SMTP_FROM` | `Crumbs <noreply@localhost>` | Sender address |
+
+Users can opt out of share notifications in **Settings > Preferences**.
+
 ## Health Check
 
 The Docker image includes a health check that pings `/login`:

docs/FEATURES.md

@@ -37,6 +37,11 @@
 - Check/uncheck items with checkboxes
 - Checked items get strikethrough styling
 - Enter key adds new item, Backspace removes empty items
+- **Nested checklists**: single-level nesting for sub-tasks
+  - Tab / Shift+Tab to indent or outdent an item (keyboard)
+  - Drag handle horizontal swipe for mobile indentation
+  - Checking a parent item checks all its children
+  - Done section groups checked children under their parent label
 
 ### Image Attachments
 - Upload images via file picker or drag-and-drop
@@ -64,6 +69,12 @@
 - Fog, Storm, Dusk, Blossom, Clay, Chalk
 - Colors adapt to note theme
 
+### Dark Mode
+- Three-way theme toggle: System / Light / Dark (in Settings > Preferences)
+- Dark mode uses a warm parchment variant — retro aesthetic preserved in both themes
+- Respects system `prefers-color-scheme` preference by default
+- FOUC-free: theme applied before first paint via a blocking inline script
+
 ### Pin Notes
 - Pin important notes to always appear at top
 - Pinned section separated from unpinned notes
@@ -81,16 +92,39 @@
 - Permanently delete from trash
 
 ### Note Sharing / Collaboration
+- **Public link sharing**: share any note via a public URL — no login required for viewers
+  - Toggle public link on/off from the share dialog
+  - Copy shareable URL with one click
+  - Read-only public page with full markdown/checklist/image rendering
+  - Public links are automatically invalidated when a note is trashed
+  - Rate-limited public endpoints (60 req/min per IP)
+  - Globe icon on note cards indicates a public link is active
 - Share notes with other users on the same instance
 - User search autocomplete for adding collaborators
 - Full collaboration: both owner and collaborators can edit content, color, and checklist mode
 - Per-user state: pin, archive, and sort order are independent per user
 - Owner-only actions: trash, delete, share/unshare
-- Collaborator indicator (Users icon) on shared note cards
-- Hover popover showing collaborator names
+- Sharing indicator on note cards (Globe for public, Users for collaborators-only)
+- Hover popover showing sharing status and collaborator names
 - Share dialog accessible from editor toolbar
 - Collaborators can leave shared notes
 - Shared notes appear mixed in main list alongside owned notes
+- Email notifications (requires SMTP config, opt-out in preferences):
+  - Share notifications when a note is shared with you
+  - Welcome email when admin creates your account
+  - Password reset notification
+  - Account deletion confirmation
+  - Email address change notification
+  - Role change notification (admin/user)
+  - Removed from shared note notification
+  - Shared note permanently deleted notification
+  - Account locked alert (after failed login attempts)
+
+### Note Version History
+- Browse previous versions of any note
+- Versions are automatically saved when content changes
+- Restore any previous version with one click
+- Version snapshots are only created when content actually changes (not on metadata-only updates)
 
 ### Full-Text Search
 - Search across note titles, content, and tags

docs/openapi.yaml

@@ -237,6 +237,104 @@ paths:
               schema:
                 $ref: '#/components/schemas/Success'
 
+  /api/notes/{id}/share:
+    parameters:
+      - name: id
+        in: path
+        required: true
+        schema:
+          type: string
+          format: uuid
+    post:
+      summary: Create a public share link
+      description: Owner-only. Creates a public share URL for the note. Idempotent — returns existing token if already shared.
+      tags: [Sharing]
+      responses:
+        '201':
+          description: Share link created
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  token:
+                    type: string
+                  url:
+                    type: string
+                    format: uri
+        '404':
+          description: Note not found or not owner
+    delete:
+      summary: Revoke a public share link
+      description: Owner-only. Removes the public share link for the note.
+      tags: [Sharing]
+      responses:
+        '204':
+          description: Share link revoked
+        '404':
+          description: Note not found or not owner
+
+  /api/shared/{token}:
+    parameters:
+      - name: token
+        in: path
+        required: true
+        schema:
+          type: string
+    get:
+      summary: Get a shared note (public)
+      description: No authentication required. Returns the note content for a valid share token. Rate limited to 60 requests per minute per IP.
+      tags: [Sharing]
+      security: []
+      responses:
+        '200':
+          description: Shared note data
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/SharedNoteData'
+        '404':
+          description: Invalid token or note is trashed
+        '429':
+          description: Rate limit exceeded
+
+  /api/shared/{token}/attachment/{attachmentId}:
+    parameters:
+      - name: token
+        in: path
+        required: true
+        schema:
+          type: string
+      - name: attachmentId
+        in: path
+        required: true
+        schema:
+          type: string
+    get:
+      summary: Get an attachment from a shared note (public)
+      description: No authentication required. Serves image binary for an attachment belonging to the shared note. Rate limited.
+      tags: [Sharing]
+      security: []
+      parameters:
+        - name: thumb
+          in: query
+          schema:
+            type: string
+            enum: ['1']
+          description: Set to '1' to get the thumbnail version
+      responses:
+        '200':
+          description: Image binary
+          content:
+            image/*:
+              schema:
+                type: string
+                format: binary
+        '404':
+          description: Invalid token, note trashed, or attachment not found
+        '429':
+          description: Rate limit exceeded
+
   /api/users/search:
     get:
       summary: Search users
@@ -520,6 +618,47 @@ components:
       description: API key (crumbs_...)
 
   schemas:
+    PublicAttachment:
+      type: object
+      description: Sanitized attachment metadata for public sharing (no server paths)
+      properties:
+        id:
+          type: string
+        filename:
+          type: string
+        mimeType:
+          type: string
+        size:
+          type: integer
+        featured:
+          type: boolean
+        createdAt:
+          type: string
+          format: date-time
+
+    SharedNoteData:
+      type: object
+      properties:
+        title:
+          type: string
+        content:
+          type: string
+        checklistMode:
+          type: boolean
+        color:
+          type: string
+          enum: [default, coral, peach, sand, mint, sage, fog, storm, dusk, blossom, clay, chalk]
+        attachments:
+          type: array
+          items:
+            $ref: '#/components/schemas/PublicAttachment'
+        createdAt:
+          type: string
+          format: date-time
+        updatedAt:
+          type: string
+          format: date-time
+
     Success:
       type: object
       properties:

docs/superpowers/plans/2026-03-20-dark-mode.md

@@ -0,0 +1,781 @@
+# Dark Mode Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Add a dark parchment theme variant with system/light/dark toggle in Settings > Preferences.
+
+**Architecture:** CSS `[data-theme="dark"]` attribute on `<html>` overrides CSS variables in `app.css`. A blocking inline script in `app.html` prevents FOUC. Theme preference uses the existing `UserPreferences` key-value system. A reactive `isDarkMode` rune in `theme.svelte.ts` drives note card color switching.
+
+**Tech Stack:** SvelteKit, Svelte 5 runes, CSS custom properties, Tailwind CSS v4, Vitest, Playwright
+
+**Spec:** `docs/superpowers/specs/2026-03-20-dark-mode-design.md`
+
+---
+
+## File Map
+
+| Action | File | Responsibility |
+|--------|------|----------------|
+| Modify | `src/app.css` | Add `--grid-dot` to `:root`, add `[data-theme="dark"]` block, update `body::before` |
+| Modify | `src/app.html` | Add FOUC-prevention inline script |
+| Modify | `src/lib/types/preferences.ts` | Add `theme` field to `UserPreferences` |
+| Create | `src/lib/utils/theme.svelte.ts` | `applyTheme()`, reactive `isDarkMode` rune |
+| Modify | `src/lib/utils/colors.ts` | Add `NOTE_COLORS_DARK`, export `getNoteColor()` |
+| Modify | `src/routes/+layout.svelte` | Add theme `$effect` watcher |
+| Modify | `src/routes/(app)/settings/preferences/+page.svelte` | Add theme segmented toggle |
+| Modify | `src/lib/components/NoteCard.svelte` | Use `getNoteColor()` with `isDarkMode` |
+| Modify | `src/lib/components/NoteEditor.svelte` | Use `getNoteColor()` with `isDarkMode` |
+| Modify | `src/lib/components/ColorPicker.svelte` | Use dark color swatches when `isDarkMode` |
+| Skip | `src/routes/(share)/s/[token]/+page.svelte` | Out of scope per spec (public share pages) |
+| Modify | `.gitignore` | Add `.superpowers/` |
+| Create | `tests/unit/theme.test.ts` | Unit tests for `applyTheme` and `isDarkMode` |
+| Create | `tests/unit/colors.test.ts` | Unit tests for `getNoteColor` |
+| Create | `tests/e2e/dark-mode.spec.ts` | E2E tests for theme toggle, persistence, system detection |
+
+---
+
+### Task 1: CSS Dark Theme Variables
+
+**Files:**
+- Modify: `src/app.css:6-23` (`:root` block) and `src/app.css:36` (`body::before`)
+
+- [ ] **Step 1: Add `--grid-dot` to `:root` and add `[data-theme="dark"]` block**
+
+In `src/app.css`, add `--grid-dot: #1a1a2e;` to the end of the `:root` block, then add the dark theme block after `:root`:
+
+```css
+:root {
+	--bg-base: #f0e6d3;
+	--bg-surface: #faf5eb;
+	--primary: #C8860A;
+	--primary-hover: #E8A020;
+	--text: #1a1a2e;
+	--text-muted: #6b6272;
+	--border: #1a1a2e;
+	--border-subtle: #d4cabb;
+	--destructive: #a63d2f;
+	--error-bg: #f5e0db;
+	--error-border: #d4a69e;
+	--error-text: #8b2e1f;
+	--success-bg: #dce8d4;
+	--success-text: #3a5a2e;
+	--card-shadow: 2px 2px 0px var(--border-subtle);
+	--card-shadow-hover: 3px 3px 0px var(--primary);
+	--grid-dot: #1a1a2e;
+}
+
+[data-theme="dark"] {
+	--bg-base: #1a1715;
+	--bg-surface: #2a2520;
+	--text: #e8dcc8;
+	--text-muted: #9a8e7e;
+	--border: #e8dcc8;
+	--border-subtle: #3a3530;
+	--destructive: #d4604e;
+	--error-bg: #3a2020;
+	--error-border: #5a3030;
+	--error-text: #e8a090;
+	--success-bg: #203020;
+	--success-text: #90c880;
+	--card-shadow: 2px 2px 0px var(--border-subtle);
+	--card-shadow-hover: 3px 3px 0px var(--primary);
+	--grid-dot: #e8dcc8;
+}
+```
+
+- [ ] **Step 2: Update `body::before` to use `--grid-dot` variable**
+
+Replace the hardcoded color in the `body::before` rule:
+
+```css
+body::before {
+	content: '';
+	position: fixed;
+	inset: 0;
+	pointer-events: none;
+	opacity: 0.03;
+	background-image: repeating-conic-gradient(var(--grid-dot) 0% 25%, transparent 0% 50%);
+	background-size: 4px 4px;
+	z-index: 0;
+}
+```
+
+- [ ] **Step 3: Verify by temporarily adding `data-theme="dark"` to `app.html`**
+
+In `src/app.html`, temporarily change `<html lang="en">` to `<html lang="en" data-theme="dark">`. Run `make dev` and visually confirm dark background and light text. Then revert the change.
+
+- [ ] **Step 4: Commit**
+
+```bash
+git add src/app.css
+git commit -m "feat: add dark theme CSS variables and grid-dot extraction"
+```
+
+---
+
+### Task 2: Theme Preference Type
+
+**Files:**
+- Modify: `src/lib/types/preferences.ts`
+
+- [ ] **Step 1: Add `theme` field to `UserPreferences`**
+
+```typescript
+export interface UserPreferences {
+	theme: 'system' | 'light' | 'dark';
+	defaultNoteMode: 'richtext' | 'markdown';
+	defaultNoteColor: NoteColor;
+	hideFooter: boolean;
+	sidebarDefaultState: 'open' | 'collapsed';
+	notifyOnShare: boolean;
+	notifyOnCollabRemoved: boolean;
+	notifyOnNoteDeleted: boolean;
+}
+
+export const DEFAULT_PREFERENCES: UserPreferences = {
+	theme: 'system',
+	defaultNoteMode: 'richtext',
+	defaultNoteColor: 'default',
+	hideFooter: false,
+	sidebarDefaultState: 'open',
+	notifyOnShare: true,
+	notifyOnCollabRemoved: true,
+	notifyOnNoteDeleted: true
+};
+```
+
+Do NOT add `theme` to `BOOLEAN_PREF_KEYS`.
+
+- [ ] **Step 2: Commit**
+
+```bash
+git add src/lib/types/preferences.ts
+git commit -m "feat: add theme preference type (system/light/dark)"
+```
+
+---
+
+### Task 3: Theme Utility — `applyTheme` and `isDarkMode`
+
+**Files:**
+- Create: `src/lib/utils/theme.svelte.ts`
+- Test: `tests/unit/theme.test.ts`
+
+- [ ] **Step 1: Write failing tests for theme utility**
+
+Note: `theme.svelte.ts` uses module-scope `$state` which requires the Svelte compiler. The Vitest node environment does not process `.svelte.ts` runes correctly, so we test only the DOM side-effects of `applyTheme` (attribute and meta tag changes). The reactive `isDarkMode` / `getIsDarkMode()` behavior is covered by E2E tests instead.
+
+Create `tests/unit/theme.test.ts`:
+
+```typescript
+import { describe, it, expect, beforeEach, vi } from 'vitest';
+
+// Mock $app/environment
+vi.mock('$app/environment', () => ({ browser: true }));
+
+describe('applyTheme', () => {
+	let applyTheme: (theme: 'system' | 'light' | 'dark') => void;
+
+	beforeEach(async () => {
+		// Reset DOM
+		document.documentElement.removeAttribute('data-theme');
+		const meta = document.querySelector('meta[name="theme-color"]');
+		if (meta) meta.remove();
+		const metaEl = document.createElement('meta');
+		metaEl.setAttribute('name', 'theme-color');
+		metaEl.setAttribute('content', '#f0e6d3');
+		document.head.appendChild(metaEl);
+
+		// Reset module state
+		vi.resetModules();
+		const mod = await import('$lib/utils/theme.svelte.js');
+		applyTheme = mod.applyTheme;
+	});
+
+	it('sets data-theme="dark" for dark mode', () => {
+		applyTheme('dark');
+		expect(document.documentElement.getAttribute('data-theme')).toBe('dark');
+	});
+
+	it('removes data-theme for light mode', () => {
+		document.documentElement.setAttribute('data-theme', 'dark');
+		applyTheme('light');
+		expect(document.documentElement.hasAttribute('data-theme')).toBe(false);
+	});
+
+	it('updates meta theme-color for dark mode', () => {
+		applyTheme('dark');
+		const meta = document.querySelector('meta[name="theme-color"]');
+		expect(meta?.getAttribute('content')).toBe('#1a1715');
+	});
+
+	it('updates meta theme-color for light mode', () => {
+		applyTheme('dark');
+		applyTheme('light');
+		const meta = document.querySelector('meta[name="theme-color"]');
+		expect(meta?.getAttribute('content')).toBe('#f0e6d3');
+	});
+
+	it('falls back to system for unknown values', () => {
+		// matchMedia returns false by default in jsdom → resolves to light
+		applyTheme('invalid' as 'system' | 'light' | 'dark');
+		expect(document.documentElement.hasAttribute('data-theme')).toBe(false);
+	});
+
+	it('resolves system preference to dark when prefers-color-scheme is dark', () => {
+		Object.defineProperty(window, 'matchMedia', {
+			writable: true,
+			value: vi.fn().mockImplementation((query: string) => ({
+				matches: query === '(prefers-color-scheme: dark)',
+				media: query,
+				addEventListener: vi.fn(),
+				removeEventListener: vi.fn(),
+				dispatchEvent: vi.fn()
+			}))
+		});
+		applyTheme('system');
+		expect(document.documentElement.getAttribute('data-theme')).toBe('dark');
+	});
+});
+```
+
+- [ ] **Step 2: Run tests to verify they fail**
+
+Run: `pnpm vitest run tests/unit/theme.test.ts`
+Expected: FAIL — module not found
+
+- [ ] **Step 3: Implement `theme.svelte.ts`**
+
+Create `src/lib/utils/theme.svelte.ts`:
+
+```typescript
+import { browser } from '$app/environment';
+
+const LIGHT_THEME_COLOR = '#f0e6d3';
+const DARK_THEME_COLOR = '#1a1715';
+
+let darkMode = $state(false);
+
+export function getIsDarkMode(): boolean {
+	return darkMode;
+}
+
+export function applyTheme(theme: 'system' | 'light' | 'dark'): void {
+	if (!browser) return;
+
+	// Validate input
+	if (theme !== 'system' && theme !== 'light' && theme !== 'dark') {
+		theme = 'system';
+	}
+
+	// Resolve system preference
+	let resolved = theme;
+	if (theme === 'system') {
+		resolved = window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
+	}
+
+	const isDark = resolved === 'dark';
+	darkMode = isDark;
+
+	if (isDark) {
+		document.documentElement.setAttribute('data-theme', 'dark');
+	} else {
+		document.documentElement.removeAttribute('data-theme');
+	}
+
+	const meta = document.querySelector('meta[name="theme-color"]');
+	if (meta) {
+		meta.setAttribute('content', isDark ? DARK_THEME_COLOR : LIGHT_THEME_COLOR);
+	}
+}
+```
+
+- [ ] **Step 4: Run tests to verify they pass**
+
+Run: `pnpm vitest run tests/unit/theme.test.ts`
+Expected: All PASS
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add src/lib/utils/theme.svelte.ts tests/unit/theme.test.ts
+git commit -m "feat: add theme utility with applyTheme and isDarkMode"
+```
+
+---
+
+### Task 4: Note Card Dark Colors
+
+**Files:**
+- Modify: `src/lib/utils/colors.ts`
+- Test: `tests/unit/colors.test.ts`
+
+- [ ] **Step 1: Write failing tests for `getNoteColor`**
+
+Create `tests/unit/colors.test.ts`:
+
+```typescript
+import { describe, it, expect } from 'vitest';
+import { getNoteColor, NOTE_COLORS, NOTE_COLORS_DARK } from '$lib/utils/colors.js';
+
+describe('getNoteColor', () => {
+	it('returns light color when isDark is false', () => {
+		expect(getNoteColor('default', false)).toBe('#faf5eb');
+		expect(getNoteColor('coral', false)).toBe('#faafa8');
+	});
+
+	it('returns dark color when isDark is true', () => {
+		expect(getNoteColor('default', true)).toBe('#2a2520');
+		expect(getNoteColor('coral', true)).toBe('#4a2522');
+	});
+
+	it('returns default color for unknown color name', () => {
+		expect(getNoteColor('unknown' as any, false)).toBe('#faf5eb');
+		expect(getNoteColor('unknown' as any, true)).toBe('#2a2520');
+	});
+
+	it('has matching keys in light and dark color maps', () => {
+		const lightKeys = Object.keys(NOTE_COLORS).sort();
+		const darkKeys = Object.keys(NOTE_COLORS_DARK).sort();
+		expect(lightKeys).toEqual(darkKeys);
+	});
+});
+```
+
+- [ ] **Step 2: Run tests to verify they fail**
+
+Run: `pnpm vitest run tests/unit/colors.test.ts`
+Expected: FAIL — `getNoteColor` and `NOTE_COLORS_DARK` not found
+
+- [ ] **Step 3: Add dark colors and helper to `colors.ts`**
+
+Update `src/lib/utils/colors.ts`:
+
+```typescript
+import type { NoteColor } from '$lib/types/index.js';
+
+export const NOTE_COLORS: Record<NoteColor, { bg: string; label: string }> = {
+	default: { bg: '#faf5eb', label: 'Default' },
+	coral: { bg: '#faafa8', label: 'Coral' },
+	peach: { bg: '#f39f76', label: 'Peach' },
+	sand: { bg: '#fff8b8', label: 'Sand' },
+	mint: { bg: '#e2f6d3', label: 'Mint' },
+	sage: { bg: '#b4ddd3', label: 'Sage' },
+	fog: { bg: '#d4e4ed', label: 'Fog' },
+	storm: { bg: '#aeccdc', label: 'Storm' },
+	dusk: { bg: '#d3bfdb', label: 'Dusk' },
+	blossom: { bg: '#f6e2dd', label: 'Blossom' },
+	clay: { bg: '#e9e3d4', label: 'Clay' },
+	chalk: { bg: '#efeff1', label: 'Chalk' }
+};
+
+export const NOTE_COLORS_DARK: Record<NoteColor, { bg: string; label: string }> = {
+	default: { bg: '#2a2520', label: 'Default' },
+	coral: { bg: '#4a2522', label: 'Coral' },
+	peach: { bg: '#4a3020', label: 'Peach' },
+	sand: { bg: '#3a3520', label: 'Sand' },
+	mint: { bg: '#2a3a22', label: 'Mint' },
+	sage: { bg: '#223a32', label: 'Sage' },
+	fog: { bg: '#222e3a', label: 'Fog' },
+	storm: { bg: '#1e2a35', label: 'Storm' },
+	dusk: { bg: '#352540', label: 'Dusk' },
+	blossom: { bg: '#3a2830', label: 'Blossom' },
+	clay: { bg: '#302e28', label: 'Clay' },
+	chalk: { bg: '#2e2e30', label: 'Chalk' }
+};
+
+export function getNoteColor(color: NoteColor, isDark: boolean): string {
+	const map = isDark ? NOTE_COLORS_DARK : NOTE_COLORS;
+	return (map[color] ?? map.default).bg;
+}
+
+export const COLOR_OPTIONS = Object.entries(NOTE_COLORS).map(([value, { label }]) => ({
+	value: value as NoteColor,
+	label
+}));
+```
+
+- [ ] **Step 4: Run tests to verify they pass**
+
+Run: `pnpm vitest run tests/unit/colors.test.ts`
+Expected: All PASS
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add src/lib/utils/colors.ts tests/unit/colors.test.ts
+git commit -m "feat: add dark note card colors and getNoteColor helper"
+```
+
+---
+
+### Task 5: FOUC Prevention Script
+
+**Files:**
+- Modify: `src/app.html`
+
+- [ ] **Step 1: Add inline script to `app.html`**
+
+Insert after the `<meta name="theme-color">` tag (line 6) and before `%sveltekit.head%` (line 15):
+
+```html
+    <script>
+      (function() {
+        try {
+          var p = JSON.parse(localStorage.getItem('crumbs-preferences') || '{}');
+          var t = p.theme || 'system';
+          if (t !== 'light' && t !== 'dark') t = 'system';
+          if (t === 'system') t = matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
+          if (t === 'dark') {
+            document.documentElement.setAttribute('data-theme', 'dark');
+            var m = document.querySelector('meta[name="theme-color"]');
+            if (m) m.content = '#1a1715';
+          }
+        } catch(e) {}
+      })();
+    </script>
+```
+
+- [ ] **Step 2: Commit**
+
+```bash
+git add src/app.html
+git commit -m "feat: add FOUC-prevention script for dark mode"
+```
+
+---
+
+### Task 6: Reactive Theme in Root Layout
+
+**Files:**
+- Modify: `src/routes/+layout.svelte`
+
+- [ ] **Step 1: Add theme `$effect` to root layout**
+
+The root layout currently imports CSS and registers the PWA service worker. Add the theme `$effect` here so both `(app)` and `(auth)` layouts get the theme applied. **Important:** Keep `initPreferences()` in `(app)/+layout.svelte` — do NOT move it here. The `(app)` layout reads `sidebarDefaultState` immediately after init, and moving init to the root layout would create a race condition. The root layout only watches the preference reactively via `$effect`, which fires after preferences are loaded.
+
+On auth pages (login/setup), `initPreferences()` hasn't been called, so `prefs.theme` will be `'system'` (the default). The FOUC script already handles the initial theme from localStorage, and the `$effect` will apply the correct theme once it runs.
+
+```svelte
+<script lang="ts">
+	import '../app.css';
+	import { onMount, onDestroy } from 'svelte';
+	import { pwaInfo } from 'virtual:pwa-info';
+	import { browser } from '$app/environment';
+	import { getPreferences } from '$lib/stores/preferences.svelte.js';
+	import { applyTheme } from '$lib/utils/theme.svelte.js';
+
+	let { children } = $props();
+	let mediaQuery: MediaQueryList | undefined;
+	let systemListener: ((e: MediaQueryListEvent) => void) | undefined;
+
+	const prefs = $derived(getPreferences());
+
+	onMount(async () => {
+		if (pwaInfo) {
+			const { registerSW } = await import('virtual:pwa-register');
+			registerSW({
+				immediate: true,
+				onRegistered(r: ServiceWorkerRegistration | undefined) {
+					console.log('SW Registered:', r);
+				},
+				onRegisterError(error: Error) {
+					console.log('SW registration error', error);
+				}
+			});
+		}
+	});
+
+	$effect(() => {
+		if (!browser) return;
+		const theme = prefs.theme ?? 'system';
+		applyTheme(theme);
+
+		// Listen for system preference changes when in system mode
+		if (systemListener && mediaQuery) {
+			mediaQuery.removeEventListener('change', systemListener);
+		}
+		if (theme === 'system') {
+			mediaQuery = window.matchMedia('(prefers-color-scheme: dark)');
+			systemListener = () => applyTheme('system');
+			mediaQuery.addEventListener('change', systemListener);
+		}
+	});
+
+	onDestroy(() => {
+		if (systemListener && mediaQuery) {
+			mediaQuery.removeEventListener('change', systemListener);
+		}
+	});
+
+	const webManifest = $derived(pwaInfo ? pwaInfo.webManifest.linkTag : '');
+</script>
+
+<svelte:head>
+	{@html webManifest}
+</svelte:head>
+
+{@render children()}
+```
+
+**Note:** `initPreferences()` stays in `(app)/+layout.svelte`. The root layout only adds the theme `$effect` and does not call `initPreferences()`.
+
+- [ ] **Step 2: Verify dev server works**
+
+Run `make dev`, open the app, go to Settings > Preferences. The theme toggle doesn't exist yet, but the app should render without errors. Check browser console for any issues.
+
+- [ ] **Step 4: Commit**
+
+```bash
+git add src/routes/+layout.svelte src/routes/\(app\)/+layout.svelte
+git commit -m "feat: add reactive theme watcher in root layout"
+```
+
+---
+
+### Task 7: Theme Toggle in Settings
+
+**Files:**
+- Modify: `src/routes/(app)/settings/preferences/+page.svelte`
+
+- [ ] **Step 1: Add theme segmented toggle**
+
+Add as the first preference section (before "Default note mode"):
+
+```svelte
+<!-- Theme -->
+<div class="space-y-2">
+	<span class="block text-sm font-medium text-[var(--text)]">Theme</span>
+	<div class="flex gap-1" role="group" aria-label="Theme">
+		{#each [['system', 'System'], ['light', 'Light'], ['dark', 'Dark']] as [value, label]}
+			<button
+				onclick={() => updatePreference('theme', value)}
+				class="rounded-sm border px-4 py-2 text-sm transition-colors {prefs.theme === value ? 'border-[var(--primary)] bg-[var(--primary)]/15 text-[var(--primary)] font-medium' : 'border-[var(--border-subtle)] text-[var(--text)] hover:border-[var(--primary)]'}"
+				data-testid="pref-theme-{value}"
+			>
+				{label}
+			</button>
+		{/each}
+	</div>
+</div>
+```
+
+- [ ] **Step 2: Manually test**
+
+Run `make dev`. Go to Settings > Preferences. Click System / Light / Dark and confirm:
+- Clicking "Dark" immediately applies dark theme
+- Clicking "Light" reverts to light theme
+- Clicking "System" follows OS preference
+- Refreshing the page persists the choice (no FOUC)
+
+- [ ] **Step 3: Commit**
+
+```bash
+git add src/routes/\(app\)/settings/preferences/+page.svelte
+git commit -m "feat: add theme toggle to preferences settings"
+```
+
+---
+
+### Task 8: Update Components to Use Dark Note Colors
+
+**Files:**
+- Modify: `src/lib/components/NoteCard.svelte:2,29-32`
+- Modify: `src/lib/components/NoteEditor.svelte:12,194-197`
+- Modify: `src/lib/components/ColorPicker.svelte`
+
+**Important:** `getIsDarkMode()` must be called **inside** `$effect` or `$derived` blocks for reactivity. Calling it as a top-level `const` would capture the value once and never update when the theme changes. Each component already has an `$effect` block where it computes card/bg styles — add `getIsDarkMode()` inside those existing blocks.
+
+Public share page (`src/routes/(share)/s/[token]/+page.svelte`) is out of scope per the spec.
+
+- [ ] **Step 1: Update `NoteCard.svelte`**
+
+Replace `NOTE_COLORS` import with `getNoteColor` and `getIsDarkMode`:
+
+```svelte
+<!-- Change import at top of script -->
+import { getNoteColor } from '$lib/utils/colors.js';
+import { getIsDarkMode } from '$lib/utils/theme.svelte.js';
+
+<!-- Inside the existing $effect block where cardStyle is computed (around lines 29-32): -->
+$effect(() => {
+	// ... existing logic ...
+	const bg = getNoteColor(note.color, getIsDarkMode());
+	cardStyle = `background-color: ${bg}`;
+});
+```
+
+Remove the `NOTE_COLORS` import. `getIsDarkMode()` is called inside the `$effect` so it re-runs when the theme changes.
+
+- [ ] **Step 2: Update `NoteEditor.svelte`**
+
+Same pattern — inside the existing `$effect` where `bgStyle` is computed:
+
+```svelte
+import { getNoteColor } from '$lib/utils/colors.js';
+import { getIsDarkMode } from '$lib/utils/theme.svelte.js';
+
+<!-- Inside the existing $effect (around lines 194-197): -->
+bgStyle = `background-color: ${getNoteColor(color, getIsDarkMode())}`;
+```
+
+Remove the `NOTE_COLORS` import.
+
+- [ ] **Step 3: Update `ColorPicker.svelte`**
+
+The ColorPicker shows circular swatches. Use `$derived` for the dark mode check so swatches update reactively:
+
+```svelte
+import { COLOR_OPTIONS, getNoteColor } from '$lib/utils/colors.js';
+import { getIsDarkMode } from '$lib/utils/theme.svelte.js';
+
+<!-- Use getIsDarkMode() in the template directly (it's reactive in Svelte 5 template expressions): -->
+style="background-color: {getNoteColor(option.value, getIsDarkMode())}"
+```
+
+Remove `NOTE_COLORS` import if no longer needed.
+
+- [ ] **Step 4: Verify all components render correctly in both themes**
+
+Run `make dev`. Toggle between light and dark in Settings > Preferences. Check:
+- Note cards show correct dark/light background colors
+- Color picker shows dark/light swatches
+- Note editor uses correct background color
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add src/lib/components/NoteCard.svelte src/lib/components/NoteEditor.svelte src/lib/components/ColorPicker.svelte
+git commit -m "feat: use dark note card colors in all components"
+```
+
+---
+
+### Task 9: E2E Tests
+
+**Files:**
+- Create: `tests/e2e/dark-mode.spec.ts`
+
+- [ ] **Step 1: Write E2E tests**
+
+Create `tests/e2e/dark-mode.spec.ts`:
+
+```typescript
+import { test, expect } from './helpers/fixtures.js';
+
+test.describe('Dark mode', () => {
+	test('Scenario: Theme toggle persists selection across page reload', async ({
+		authenticatedPage: page
+	}) => {
+		// Given the user is on the preferences page
+		await page.goto('/settings/preferences');
+
+		// When the user selects dark theme
+		await page.getByTestId('pref-theme-dark').click();
+
+		// Then the page applies dark theme
+		await expect(page.locator('html')).toHaveAttribute('data-theme', 'dark');
+
+		// When the page is reloaded
+		await page.reload();
+
+		// Then the dark theme persists without flash
+		await expect(page.locator('html')).toHaveAttribute('data-theme', 'dark');
+		await expect(page.getByTestId('pref-theme-dark')).toHaveClass(/font-medium/);
+	});
+
+	test('Scenario: Light mode removes dark theme attribute', async ({
+		authenticatedPage: page
+	}) => {
+		// Given dark theme is active
+		await page.goto('/settings/preferences');
+		await page.getByTestId('pref-theme-dark').click();
+		await expect(page.locator('html')).toHaveAttribute('data-theme', 'dark');
+
+		// When the user selects light theme
+		await page.getByTestId('pref-theme-light').click();
+
+		// Then the dark theme attribute is removed
+		await expect(page.locator('html')).not.toHaveAttribute('data-theme');
+	});
+
+	test('Scenario: System mode follows OS dark preference', async ({
+		authenticatedPage: page
+	}) => {
+		// Given the OS prefers dark mode
+		await page.emulateMedia({ colorScheme: 'dark' });
+
+		// When the user selects system theme
+		await page.goto('/settings/preferences');
+		await page.getByTestId('pref-theme-system').click();
+
+		// Then the page applies dark theme from system preference
+		// Use toHaveAttribute with timeout to handle async $effect execution
+		await expect(page.locator('html')).toHaveAttribute('data-theme', 'dark', { timeout: 5000 });
+	});
+
+	test('Scenario: Note cards use dark colors in dark mode', async ({
+		authenticatedPage: page
+	}) => {
+		// Given dark theme is active
+		await page.goto('/settings/preferences');
+		await page.getByTestId('pref-theme-dark').click();
+
+		// When viewing the notes page
+		await page.goto('/');
+
+		// Then note cards should have dark background colors
+		const noteCard = page.getByTestId('note-card').first();
+		if (await noteCard.isVisible()) {
+			const bg = await noteCard.evaluate((el) => getComputedStyle(el).backgroundColor);
+			// Dark default color is #2a2520 = rgb(42, 37, 32)
+			expect(bg).not.toBe('rgb(250, 245, 235)'); // Not the light default
+		}
+	});
+});
+```
+
+- [ ] **Step 2: Run E2E tests**
+
+Run: `pnpm test:e2e tests/e2e/dark-mode.spec.ts`
+Expected: All PASS
+
+- [ ] **Step 3: Commit**
+
+```bash
+git add tests/e2e/dark-mode.spec.ts
+git commit -m "test: add E2E tests for dark mode toggle and persistence"
+```
+
+---
+
+### Task 10: Housekeeping and Type Check
+
+**Files:**
+- Modify: `.gitignore`
+
+- [ ] **Step 1: Add `.superpowers/` to `.gitignore`**
+
+Append to `.gitignore`:
+
+```
+# Superpowers brainstorm artifacts
+.superpowers/
+```
+
+- [ ] **Step 2: Run type check**
+
+Run: `pnpm check`
+Expected: No errors. If there are type errors, fix them.
+
+- [ ] **Step 3: Run full test suite**
+
+Run: `make test`
+Expected: All unit and E2E tests pass.
+
+- [ ] **Step 4: Commit**
+
+```bash
+git add .gitignore
+git commit -m "chore: add .superpowers/ to gitignore"
+```

docs/superpowers/specs/2026-03-20-dark-mode-design.md

@@ -0,0 +1,190 @@
+# Dark Mode / Theme Toggle — Design Spec
+
+**Issue:** #26
+**Date:** 2026-03-20
+**Status:** Draft
+
+## Summary
+
+Add a dark variant of the retro parchment theme with a three-way toggle (system / light / dark) in Settings > Preferences. The dark theme preserves the retro 8-bit character — warm dark tones, not cold grays.
+
+## Decisions
+
+- **Toggle location:** Settings > Preferences only (no header icon)
+- **UI pattern:** Segmented buttons (system / light / dark), matching existing `defaultNoteMode` toggle style
+- **Implementation:** CSS `[data-theme="dark"]` attribute on `<html>`, variable overrides in `app.css`
+- **Pixel grid texture:** Inverted to light dots (`#e8dcc8`) at 3% opacity in dark mode
+- **Default:** `system` (follows `prefers-color-scheme`)
+- **Light mode:** No `data-theme` attribute set (`:root` defaults apply). `data-theme="dark"` is only set for dark mode. This means no redundant `[data-theme="light"]` block is needed.
+
+## 1. CSS Variable Overrides
+
+Add `--grid-dot` to the existing `:root` block and add a `[data-theme="dark"]` block after it in `app.css`:
+
+```css
+:root {
+  /* ...existing vars... */
+  --grid-dot: #1a1a2e;  /* new — extracted from body::before */
+}
+
+[data-theme="dark"] {
+  --bg-base: #1a1715;
+  --bg-surface: #2a2520;
+  --text: #e8dcc8;
+  --text-muted: #9a8e7e;
+  --border: #e8dcc8;
+  --border-subtle: #3a3530;
+  --destructive: #d4604e;
+  --error-bg: #3a2020;
+  --error-border: #5a3030;
+  --error-text: #e8a090;
+  --success-bg: #203020;
+  --success-text: #90c880;
+  --card-shadow: 2px 2px 0px var(--border-subtle);
+  --card-shadow-hover: 3px 3px 0px var(--primary);
+  --grid-dot: #e8dcc8;
+}
+```
+
+`--primary` and `--primary-hover` remain unchanged — gold works on both backgrounds.
+
+`--card-shadow` uses `var(--border-subtle)` in both modes for consistency — the dark `--border-subtle` (#3a3530) produces the right effect.
+
+Update `body::before` to use the new variable:
+```css
+body::before {
+  background-image: repeating-conic-gradient(var(--grid-dot) 0% 25%, transparent 0% 50%);
+}
+```
+
+## 2. Theme Preference Storage
+
+Extend the existing `UserPreferences` system:
+
+- **Type change:** Add `theme: 'system' | 'light' | 'dark'` to `UserPreferences` interface
+- **Default:** `'system'`
+- **Storage:** Same key-value `userPreferences` table + localStorage cache — no schema migration needed
+- **Do NOT add `theme` to `BOOLEAN_PREF_KEYS`** — it's a string enum, not a boolean
+
+Files to modify:
+- `src/lib/types/preferences.ts` — add `theme` field and default
+
+The existing `fromServerRecord` in `preferences.svelte.ts` does not validate string values. The `applyTheme` function (Section 4) must guard against unexpected values and fall back to `'system'` if the value is not one of the three valid options.
+
+## 3. FOUC Prevention
+
+Add a blocking `<script>` in `app.html` `<head>`, **after** the `<meta name="theme-color">` tag and **before** `%sveltekit.head%`:
+
+```html
+<script>
+  (function() {
+    try {
+      var p = JSON.parse(localStorage.getItem('crumbs-preferences') || '{}');
+      var t = p.theme || 'system';
+      if (t !== 'light' && t !== 'dark') t = 'system';
+      if (t === 'system') t = matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
+      if (t === 'dark') {
+        document.documentElement.setAttribute('data-theme', 'dark');
+        var m = document.querySelector('meta[name="theme-color"]');
+        if (m) m.content = '#1a1715';
+      }
+    } catch(e) {}
+  })();
+</script>
+```
+
+This runs synchronously before first paint. The script validates the theme value and null-checks the meta element.
+
+## 4. Reactive Theme Application
+
+Create `src/lib/utils/theme.svelte.ts` (`.svelte.ts` to enable Svelte 5 runes) with:
+
+- `applyTheme(theme: 'system' | 'light' | 'dark')` — resolves system preference, sets/removes `data-theme="dark"` on `document.documentElement`, updates `<meta name="theme-color">`. Guards against unexpected values (falls back to `'system'`). All DOM/`matchMedia` access guarded with `browser` check from `$app/environment`.
+- `isDarkMode` — a reactive `$state` boolean, updated by `applyTheme` and the `matchMedia` listener. Components import this to conditionally use dark color variants.
+
+Place the theme `$effect` in the **root `+layout.svelte`** (not just `(app)` layout). This ensures both `(app)` and `(auth)` layout groups get the theme applied. The root layout currently only imports CSS — this adds a small `$effect` that watches `preferences.theme` and calls `applyTheme`. It also registers a `matchMedia('(prefers-color-scheme: dark)')` change listener when in system mode, cleaned up on destroy.
+
+## 5. Note Card Dark Colors
+
+Add a parallel `NOTE_COLORS_DARK` map in `src/lib/utils/colors.ts`:
+
+| Color | Light | Dark |
+|-------|-------|------|
+| default | `#faf5eb` | `#2a2520` |
+| coral | `#faafa8` | `#4a2522` |
+| peach | `#f39f76` | `#4a3020` |
+| sand | `#fff8b8` | `#3a3520` |
+| mint | `#e2f6d3` | `#2a3a22` |
+| sage | `#b4ddd3` | `#223a32` |
+| fog | `#d4e4ed` | `#222e3a` |
+| storm | `#aeccdc` | `#1e2a35` |
+| dusk | `#d3bfdb` | `#352540` |
+| blossom | `#f6e2dd` | `#3a2830` |
+| clay | `#e9e3d4` | `#302e28` |
+| chalk | `#efeff1` | `#2e2e30` |
+
+Export a helper `getNoteColor(color: NoteColor, isDark: boolean): string` that returns the correct bg hex.
+
+Components (`NoteCard.svelte`, `NoteEditor.svelte`, `ColorPicker.svelte`) import `isDarkMode` from `theme.svelte.ts` and pass it to `getNoteColor`. This is the single approach — do not use direct DOM inspection for dark mode detection.
+
+## 6. Settings UI
+
+Add a "Theme" section to `src/routes/(app)/settings/preferences/+page.svelte` as the **first** preference (before "Default note mode"):
+
+```svelte
+<!-- Theme -->
+<div class="space-y-2">
+  <span class="block text-sm font-medium text-[var(--text)]">Theme</span>
+  <div class="flex gap-1" role="group" aria-label="Theme">
+    {#each [['system', 'System'], ['light', 'Light'], ['dark', 'Dark']] as [value, label]}
+      <button
+        onclick={() => updatePreference('theme', value)}
+        class="rounded-sm border px-4 py-2 text-sm transition-colors ..."
+        data-testid="pref-theme-{value}"
+      >
+        {label}
+      </button>
+    {/each}
+  </div>
+</div>
+```
+
+Test IDs: `pref-theme-system`, `pref-theme-light`, `pref-theme-dark`.
+
+## 7. Landing Page
+
+Out of scope for this spec. The landing page (`website/`) uses its own color system separate from `app.css`. Dark mode support for the landing page will be tracked separately.
+
+## 8. Prose / Typography Overrides
+
+The `.prose` overrides in `app.css` already use CSS variables, so they'll automatically adapt. No changes needed.
+
+The TipTap editor styles (table borders, selected cells, task lists) also use CSS variables. No changes needed.
+
+## 9. Color Picker in Dark Mode
+
+The `ColorPicker` component shows circular swatches. In dark mode, these should display the dark color variants. The component imports `isDarkMode` from `theme.svelte.ts` and uses `getNoteColor(color, isDarkMode)` to get the correct swatch background.
+
+## 10. Testing
+
+### Unit tests
+- `theme.svelte.ts` — test `applyTheme` sets correct attribute and meta tag, validates unknown values
+- `colors.ts` — test `getNoteColor` returns correct color for light/dark
+
+### E2E tests
+- Theme toggle in preferences persists and applies (use `data-testid` selectors)
+- System preference detection (use Playwright's `page.emulateMedia({ colorScheme: 'dark' })`)
+- No FOUC on page reload in dark mode
+- Note cards render with correct dark colors
+
+## 11. PWA Manifest
+
+The PWA manifest (`@vite-pwa/sveltekit`) contains a static `theme_color`. This cannot be dynamically changed. The manifest will keep the light theme color (`#f0e6d3`). The `<meta name="theme-color">` is updated dynamically by the FOUC script and `applyTheme`, which handles the browser chrome color. This is a known limitation of PWA manifests and is acceptable.
+
+## Out of Scope
+
+- Header quick-toggle icon
+- Per-note theme override
+- Custom color theme builder
+- Dark mode for public shared note pages (can be added later)
+- Dark mode for landing page (separate task)

docs/superpowers/specs/2026-03-20-public-note-sharing-design.md

@@ -0,0 +1,232 @@
+# Public Note Sharing — Design Spec
+
+**Issue**: [#7 — Public links and shared notes](https://github.com/bretzel-app/crumbs/issues/7)
+**Date**: 2026-03-20
+
+## Overview
+
+Allow sharing individual notes via a public URL that anyone can view without authentication. Read-only sharing via unguessable tokens. Integrates into the existing ShareDialog alongside collaborator management.
+
+## Decisions
+
+| Decision | Choice | Rationale |
+|---|---|---|
+| Share UI location | Inside existing ShareDialog | One "Share" entry point for all sharing (public + collaborators) |
+| Expiry | Deferred to future version | Simpler v1; active/revoked toggle only |
+| Rate limiting | In-memory per-IP | Lightweight, resets on restart; token entropy handles enumeration |
+| Architecture | Separated shares-service | Follows collaborators-service pattern; clean module boundary |
+| Sharing icon | Globe (public) or Users (collaborators) | Single icon slot; tooltip shows combined sharing state |
+
+## Schema
+
+New `sharedNotes` table in `src/lib/server/db/schema.ts`:
+
+```typescript
+export const sharedNotes = sqliteTable('shared_notes', {
+  noteId: text('note_id').primaryKey().references(() => notes.id, { onDelete: 'cascade' }),
+  token: text('token').notNull().unique(),
+  createdAt: integer('created_at', { mode: 'timestamp' }).notNull(),
+  expiresAt: integer('expires_at', { mode: 'timestamp' }), // NULL = no expiry, reserved for future use
+});
+```
+
+- `noteId` as primary key — one share per note, no separate `id` needed
+- `integer` timestamps with `mode: 'timestamp'` — matches all other tables in the schema
+- `createdAt` set in service layer (`new Date()`), not via SQL default
+- CASCADE delete — deleting the note removes the share
+- Token: `nanoid(21)` — ~128 bits of entropy
+- No update to `deleteUser()` needed — shares cascade through notes (foreign keys enabled via `PRAGMA foreign_keys = ON` in db connection)
+
+## Types
+
+Add to `src/lib/types/index.ts`:
+
+```typescript
+export interface NoteShare {
+  noteId: string;
+  token: string;
+  createdAt: Date;
+  expiresAt: Date | null;
+}
+```
+
+Extend the `Note` interface:
+
+```typescript
+export interface Note {
+  // ...existing fields
+  shareToken?: string; // populated during hydration if a public share exists
+}
+```
+
+## Service Layer
+
+New file: `src/lib/server/shares-service.ts`
+
+| Function | Params | Returns | Description |
+|---|---|---|---|
+| `createShare` | `db, noteId, userId` | `{ token }` | Verify ownership, generate nanoid(21), insert row, return token. If share already exists, return existing token. |
+| `revokeShare` | `db, noteId, userId` | `void` | Verify ownership, delete share row |
+| `getShareByNoteId` | `db, noteId` | `NoteShare \| null` | Return share if exists (for ShareDialog) |
+| `getSharedNote` | `db, token` | `SharedNoteData \| null` | Public — fetch note by token, return null if trashed or not found |
+| `fetchSharesForNotes` | `db, noteIds` | `Map<string, string>` | Batch fetch — returns Map of noteId → token for hydration (only token needed for NoteCard indicator) |
+
+`SharedNoteData` type (returned to public viewers):
+
+```typescript
+interface SharedNoteData {
+  title: string;
+  content: string;
+  checklistMode: boolean;
+  color: NoteColor;
+  attachments: Attachment[];
+  createdAt: Date;
+  updatedAt: Date;
+}
+```
+
+## API Endpoints
+
+### `POST /api/notes/[id]/share`
+
+- **Auth**: Required (owner only)
+- **Body**: None
+- **Response**: `{ token: string, url: string }`
+- **Behavior**: Creates share or returns existing one. URL constructed from request origin + `/s/${token}`
+
+### `DELETE /api/notes/[id]/share`
+
+- **Auth**: Required (owner only)
+- **Response**: `204 No Content`
+- **Behavior**: Deletes share row. Link immediately returns 404.
+
+### `GET /api/shared/[token]`
+
+- **Auth**: None (public)
+- **Rate limit**: 60 requests/min per IP (in-memory)
+- **Response**: `SharedNoteData` JSON
+- **Error cases**:
+  - Invalid/unknown token → 404
+  - Note is trashed → 404
+  - Rate limited → 429
+
+### `GET /api/shared/[token]/attachment/[attachmentId]`
+
+- **Auth**: None (public)
+- **Rate limit**: Same as above
+- **Response**: Image binary (proxied from attachment storage)
+- **Behavior**: Verify attachment belongs to the shared note, then serve
+
+## Routes
+
+```
+src/routes/
+  (share)/
+    +layout.svelte       # Minimal layout: parchment bg, centered, no app chrome
+    s/[token]/
+      +page.server.ts    # Load shared note by token via shares-service
+      +page.svelte       # Read-only note renderer
+```
+
+### Auth Middleware
+
+Add `/s/` and `/api/shared` to `PUBLIC_PATHS` in `src/hooks.server.ts`. Both are needed — `/s/` for the public page route, `/api/shared` for the public API endpoints.
+
+### Public Page Design
+
+- Parchment background (`--bg-base`)
+- Centered content card (`--bg-surface`, `--border-subtle`, `--card-shadow`)
+- Note title in JetBrains Mono
+- Rendered markdown content or checklist (read-only)
+- Inline images from attachments
+- No tags, no edit controls, no sidebar, no navigation
+- Footer: "POWERED BY CRUMBS" in Press Start 2P pixel font, links to project
+
+## UI Components
+
+### ShareDialog Changes
+
+Add a "Public link" section **above** the existing collaborators section:
+
+**Inactive state:**
+- Globe icon + "Public link" label + toggle switch (off)
+- Subtitle: "Anyone with the link can view this note (read-only)"
+
+**Active state:**
+- Globe icon + "Public link" label + toggle switch (on, gold)
+- URL input (readonly) + "Copy" button
+- Subtitle: "Toggle off to revoke access. The link will return a 404."
+- Border highlight in `--primary` gold
+
+Toggle on → calls `POST /api/notes/[id]/share`, displays URL
+Toggle off → calls `DELETE /api/notes/[id]/share`, hides URL
+Copy button → clipboard API, brief "Copied!" feedback
+
+### NoteCard Share Indicator
+
+Single icon slot in top-right of NoteCard (replaces showing both icons):
+
+| State | Icon | Color |
+|---|---|---|
+| Public link active | `Globe` (Lucide) | `--primary` gold |
+| Collaborators only | `Users` (Lucide) | `--text-muted` |
+| Both | `Globe` (Lucide) | `--primary` gold |
+| Neither | No icon | — |
+
+**Hover tooltip** shows combined sharing info regardless of which icon is displayed:
+- "Shared publicly via link" (if public share exists)
+- "Shared with N collaborator(s)" (if collaborators exist)
+- Both lines if both exist
+
+### NoteEditor Share Button
+
+Existing Share button behavior unchanged. The Globe/Users icon logic from NoteCard also applies to the editor toolbar button to indicate current sharing state.
+
+## Rate Limiting
+
+New file: `src/lib/server/ip-rate-limit.ts` — separate from the existing DB-backed `rate-limit.ts` (which is login-specific).
+
+```typescript
+// In-memory store: Map<IP, { count: number, windowStart: number }>
+// 60 requests per minute per IP
+// Applied to GET /api/shared/[token] and GET /api/shared/[token]/attachment/[id]
+```
+
+Resets on server restart. No database table needed.
+
+## Hydration
+
+`hydrateNotes()` in `notes-service.ts` must be updated to call `fetchSharesForNotes()` and populate `shareToken` on each note. This follows the existing pattern where `hydrateNotes` already batch-fetches tags, attachments, and collaborators.
+
+## Security
+
+- Tokens are unguessable: nanoid(21) = ~128 bits of entropy
+- `/s/` and `/api/shared` routes bypass auth middleware — only these prefixes
+- Trashed notes return 404 even if share token is valid
+- Only note owners can create/revoke shares — collaborators cannot
+- No user information exposed on public page (no username, no email, no tags)
+- Rate limiting prevents brute-force enumeration
+- Attachments served through share-specific route (validates attachment belongs to shared note)
+
+## Out of Scope (v1)
+
+- Expiry dates / auto-expire
+- Password-protected shares
+- Edit access through share links
+- Share analytics / view counts
+- Email notifications for share events
+- E2EE interaction (no E2EE exists)
+
+## Acceptance Criteria
+
+- [ ] Share toggle in ShareDialog creates/revokes public link
+- [ ] Unique nanoid(21) token generated per shared note
+- [ ] Public `/s/[token]` route renders note without auth
+- [ ] Copy link to clipboard with feedback
+- [ ] Revoke share → link returns 404
+- [ ] Globe indicator on NoteCard for publicly shared notes
+- [ ] Combined tooltip showing all sharing state
+- [ ] Trashed notes return 404 even if shared
+- [ ] Minimal, parchment-styled public page with "Powered by Crumbs"
+- [ ] In-memory rate limiting on public endpoints
+- [ ] Attachments accessible on public page

docs/superpowers/specs/2026-03-20-screenshot-automation-design.md

@@ -0,0 +1,322 @@
+# Screenshot Automation for Landing Page
+
+## Overview
+
+A Playwright-based script that seeds the Crumbs app with bretzel-themed demo data, captures 10 screenshots (7 desktop + 3 mobile) for the landing page, and commits them. Triggered manually via a GitHub Actions workflow.
+
+## Architecture
+
+```
+scripts/
+  screenshots.ts          # Main orchestrator: seed + capture
+  fixtures/
+    bretzel-pixel.ts      # Generates a pixel-art bretzel PNG programmatically
+```
+
+Single script (`scripts/screenshots.ts`) that:
+1. Spawns the preview server as a child process (`pnpm preview --port 4173`), same approach as `playwright.config.ts` uses for e2e tests. The app uses `@sveltejs/adapter-node`, so `vite preview` import won't work — must spawn via CLI.
+2. Deletes any existing screenshot DB to start fresh
+3. Seeds data via API calls (setup admin, login, create notes/users/keys)
+4. Navigates to each view and captures screenshots at specific viewports
+5. Saves PNGs directly to `website/assets/`
+6. Kills the preview server in `finally` block
+
+## Seed Data — Bretzel Universe
+
+### Users
+
+| User | Email | Role | Purpose |
+|------|-------|------|---------|
+| Bretzel Admin | admin@bretzel.app | admin | Main user, owns all notes |
+| Alice Chen | alice@bretzel.app | user | Collaborator for sharing screenshot |
+
+### Tags
+
+Passed explicitly in the `tags` array of each `POST /api/notes` request body: `baking`, `bretzel`, `dev`, `devops`, `homelab`, `personal`, `reading`, `weekend`. Tags are NOT auto-parsed from hashtags in content — they must be provided as a separate field.
+
+### Notes
+
+| # | Title | Color | Mode | Tags | Pinned | Special |
+|---|-------|-------|------|------|--------|---------|
+| 1 | Bretzel Ingredients | sand | checklist | #baking, #bretzel | yes | Checklist items (see below) |
+| 2 | Self-Hosting Stack | fog | rich text | #homelab, #devops | no | Homelab list (see below) |
+| 3 | Back to Retro Gaming | peach | rich text | #reading, #personal | no | Retro gaming note |
+| 4 | The Best Software Is the Software You Own | coral | rich text | #personal, #bretzel | no | Self-hosting manifesto |
+| 5 | Weekend Plans | mint | rich text | #personal, #weekend | no | Casual weekend plans |
+| 6 | Ancient Flute Harmonica Discovered | chalk | rich text | #reading | no | Quirky news note |
+| 7 | Baking code for the... | clay | checklist | #dev, #bretzel | no | Dev/baking crossover |
+
+### Note Content Details
+
+**Bretzel Ingredients** (checklist):
+- [x] 500g bread flour
+- [x] 300ml warm water
+- [x] 10g salt
+- [ ] 7g dry yeast
+- [ ] 30g butter (softened)
+- [ ] Baking soda for the bath
+- [ ] Coarse salt for topping
+
+**Self-Hosting Stack** (rich text — used for editor screenshot):
+```
+Current homelab setup:
+
+**Crumbs** — notes (obviously)
+**42** — holiday budget tracking
+**Dokploy** — deployment platform
+**Outline** — team wiki
+**Navidrome** — music streaming
+**Vaultwarden** — passwords
+**Nextcloud** — files & calendar
+**Plausible** — analytics
+
+Everything below daily reverse proxy.
+```
+
+**The Best Software Is the Software You Own** (rich text):
+```
+Self-host everything. Trust no cloud.
+
+The best software is the software you own.
+Your data. Your server. Your rules.
+
+If it can't run on your hardware, it's not really yours.
+```
+
+**Back to Retro Gaming** (rich text):
+```
+Games to replay this summer:
+
+Chrono Trigger (SNES) — best RPG ever made
+The Legend of Zelda: Link's Awakening (GB)
+Castlevania: Symphony of the Night (PS1)
+Advance Wars (GBA)
+Final Fantasy Tactics (PS1)
+
+The pixel art era was peak game design.
+```
+
+**Weekend Plans** (rich text):
+```
+Saturday:
+- Farmer's market (get sourdough starter)
+- Fix the Dokploy SSL cert renewal
+- Bake a batch of bretzels
+
+Sunday:
+- Retro gaming marathon
+- Update the self-hosting stack
+- Plan next trip on 42
+```
+
+**Ancient Flute Harmonica Discovered** (rich text):
+```
+Archaeologists found a 40,000-year-old flute carved from vulture bone.
+
+The oldest known musical instrument.
+Imagine the first song ever played.
+```
+
+**Baking code for the...** (checklist):
+```
+- [x] Set up CI/CD pipeline
+- [x] Write the CRDT sync logic
+- [ ] Bake the docker image
+- [ ] Deploy to the homelab
+- [ ] Celebrate with a bretzel
+```
+
+### Image Attachments
+
+**Pixel-art bretzel image** (`scripts/fixtures/bretzel-pixel.ts`):
+- Generated programmatically as a PNG using raw pixel data (no external dependencies)
+- ~64x64 pixel grid, bretzel shape in warm browns (#C8860A gold, #8B6914 dark, #F0E6D3 parchment bg)
+- Attached as featured image to "Bretzel Ingredients" note
+- Also create a second smaller image attached to the same note (e.g. a pixel-art salt shaker or oven) for visual variety
+
+### Version History
+
+Send 4-5 `PATCH /api/notes/:id` calls to "Self-Hosting Stack" with varying content. Version history entries are created as a side-effect of each PATCH — there is no explicit "create version" endpoint. Each version adds or changes a tool in the stack, so the diff is meaningful when viewed in the history panel.
+
+### API Keys
+
+Create via API after seeding:
+| Name | Purpose |
+|------|---------|
+| Claude Code | For MCP integration screenshot |
+| N8N | For automation screenshot |
+
+## Screenshot Capture Plan
+
+### Desktop (1280x800)
+
+| # | Filename | View | Capture Steps |
+|---|----------|------|---------------|
+| 1 | screenshot-grid.png | Home grid | Navigate to `/`, wait for notes to render, ensure sidebar is expanded with tags visible |
+| 2 | screenshot-editor.png | Note editor | Click "Self-Hosting Stack" note, wait for editor to open with content and toolbar visible |
+| 3 | screenshot-checklist.png | Checklist mode | Click "Bretzel Ingredients" note, wait for checklist items with checkboxes visible |
+| 4 | screenshot-sharing.png | Share dialog | Open a note, click share button, wait for ShareDialog with "Alice Chen" listed as collaborator |
+| 5 | screenshot-history.png | Version history | Open "Self-Hosting Stack", click history button, select a middle version in the list, wait for preview panel |
+| 6 | screenshot-attachments.png | Attachments | Open "Bretzel Ingredients" note (has featured bretzel image), ensure image thumbnails and featured strip visible |
+| 7 | screenshot-api.png | Settings > API/MCP | Navigate to `/settings/mcp`, wait for API keys list ("Claude Code", "N8N") and MCP config JSON block |
+
+### Mobile (390x844)
+
+| # | Filename | View | Capture Steps |
+|---|----------|------|---------------|
+| 1 | screenshot-mobile-grid.png | Home grid | Navigate to `/`, wait for notes in mobile layout (no sidebar, tags as horizontal pills) |
+| 2 | screenshot-mobile-editor.png | Note editor | Open "Self-Hosting Stack" note, wait for mobile editor |
+| 3 | screenshot-mobile-checklist.png | Checklist | Open "Bretzel Ingredients" note, wait for mobile checklist view |
+
+### Capture Settings
+- Format: PNG
+- Full page: false (viewport only)
+- Animations disabled via `page.emulateMedia({ reducedMotion: 'reduce' })` to avoid capturing mid-animation
+- Wait for `networkidle` after each navigation before capturing
+
+## GitHub Actions Workflow
+
+**File**: `.github/workflows/screenshots.yml`
+
+```yaml
+name: Screenshots
+
+on:
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  screenshots:
+    name: Capture Landing Page Screenshots
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v4
+        with:
+          version: latest
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: pnpm
+
+      - run: pnpm install --frozen-lockfile
+
+      - name: Install Playwright browsers and system deps
+        run: pnpm exec playwright install --with-deps chromium
+
+      - name: Build app
+        run: pnpm build
+        env:
+          DATABASE_URL: ./data/screenshots.db
+
+      - name: Capture screenshots
+        run: pnpm exec tsx scripts/screenshots.ts
+        env:
+          DATABASE_URL: ./data/screenshots.db
+
+      - name: Commit screenshots
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add website/assets/screenshot-*.png
+          git diff --cached --quiet && echo "No screenshot changes" && exit 0
+          git commit -m "chore: update landing page screenshots [skip ci]"
+          git push origin main
+```
+
+## Script Structure
+
+```typescript
+// scripts/screenshots.ts
+
+import { chromium, type Page } from 'playwright';
+import { spawn, type ChildProcess } from 'child_process';
+import { generateBretzelPixelArt } from './fixtures/bretzel-pixel';
+
+const BASE = 'http://localhost:4173';
+const DESKTOP = { width: 1280, height: 800 };
+const MOBILE = { width: 390, height: 844 };
+const OUTPUT = 'website/assets';
+
+async function main() {
+  // 1. Start preview server (spawn child process, wait for port 4173)
+  const server = await startPreviewServer();
+
+  // 2. Launch browser
+  const browser = await chromium.launch();
+
+  try {
+    // 3. Seed data (desktop context — API calls work at any viewport)
+    const seedContext = await browser.newContext({ viewport: DESKTOP });
+    const seedPage = await seedContext.newPage();
+    await seed(seedPage);
+
+    // 4. Desktop screenshots
+    await captureDesktop(seedPage);
+    await seedContext.close();
+
+    // 5. Mobile screenshots
+    const mobileContext = await browser.newContext({ viewport: MOBILE });
+    const mobilePage = await mobileContext.newPage();
+    await login(mobilePage);
+    await captureMobile(mobilePage);
+    await mobileContext.close();
+  } finally {
+    await browser.close();
+    server.close();
+  }
+}
+
+async function seed(page: Page) {
+  // Setup admin via POST /api/auth/setup
+  // Login via POST /api/auth/login (sets session cookie on page context)
+  // Create notes via POST /api/notes (with content, color, tags:string[], pinned, checklistMode)
+  //   → capture note IDs from responses for later use
+  // Create collaborator user via POST /api/admin/users
+  //   → capture alice.id (numeric) from response
+  // Share a note via POST /api/notes/:id/collaborators { userId: alice.id }
+  // Create version history: PATCH /api/notes/:id × 4-5 with varying content
+  // Upload pixel-art bretzel image via POST /api/notes/:id/attachments (multipart form)
+  // Create API keys via POST /api/settings/api-keys { name: "Claude Code" } and { name: "N8N" }
+}
+
+async function captureDesktop(page: Page) {
+  // D1: Grid view
+  // D2: Editor (Self-Hosting Stack)
+  // D3: Checklist (Bretzel Ingredients)
+  // D4: Sharing dialog
+  // D5: Version history
+  // D6: Attachments
+  // D7: API/MCP settings
+}
+
+async function captureMobile(page: Page) {
+  // M1: Grid view
+  // M2: Editor
+  // M3: Checklist
+}
+```
+
+## Landing Page Updates
+
+After the screenshots are generated, `website/index.html` needs updating:
+- Add new screenshot entries for: checklist, sharing, history, attachments, API
+- Update alt text and labels
+- Hero image stays as `screenshot-grid.png`
+- Mobile section adds checklist screenshot, replaces sidebar screenshot
+
+## Dependencies
+
+No new dependencies. Uses:
+- `playwright` (already in devDependencies for e2e tests)
+- `tsx` (already in devDependencies for other scripts)
+- Node.js built-in `fs`, `path`, `Buffer` for pixel-art PNG generation
+- SvelteKit's preview server (spawned as child process via `pnpm preview`)
+
+## Open Questions
+
+None — all decisions resolved during brainstorming.

drizzle/0003_uneven_tomorrow_man.sql

@@ -0,0 +1,23 @@
+CREATE TABLE `note_versions` (
+	`id` text PRIMARY KEY NOT NULL,
+	`note_id` text NOT NULL,
+	`version` integer NOT NULL,
+	`title` text DEFAULT '' NOT NULL,
+	`content` text DEFAULT '' NOT NULL,
+	`checklist_mode` integer DEFAULT false NOT NULL,
+	`color` text DEFAULT 'default' NOT NULL,
+	`created_at` integer NOT NULL,
+	FOREIGN KEY (`note_id`) REFERENCES `notes`(`id`) ON UPDATE no action ON DELETE cascade
+);
+--> statement-breakpoint
+CREATE INDEX `note_versions_note_id_idx` ON `note_versions` (`note_id`);--> statement-breakpoint
+CREATE UNIQUE INDEX `note_versions_note_id_version_unique` ON `note_versions` (`note_id`,`version`);--> statement-breakpoint
+CREATE TABLE `shared_notes` (
+	`note_id` text PRIMARY KEY NOT NULL,
+	`token` text NOT NULL,
+	`created_at` integer NOT NULL,
+	`expires_at` integer,
+	FOREIGN KEY (`note_id`) REFERENCES `notes`(`id`) ON UPDATE no action ON DELETE cascade
+);
+--> statement-breakpoint
+CREATE UNIQUE INDEX `shared_notes_token_unique` ON `shared_notes` (`token`);

drizzle/meta/_journal.json

@@ -22,6 +22,13 @@
       "when": 1773150888301,
       "tag": "0002_deep_black_widow",
       "breakpoints": true
+    },
+    {
+      "idx": 3,
+      "version": "6",
+      "when": 1774037379518,
+      "tag": "0003_uneven_tomorrow_man",
+      "breakpoints": true
     }
   ]
 }

package.json

@@ -1,8 +1,9 @@
 {
   "name": "crumbs",
   "private": true,
-  "version": "0.19.3",
+  "version": "0.28.4",
   "type": "module",
+  "packageManager": "pnpm@9.15.9",
   "license": "MIT",
   "author": "Bretzel (https://bretzel.app)",
   "homepage": "https://crumbs.bretzel.app",
@@ -12,7 +13,8 @@
   },
   "scripts": {
     "dev": "vite dev",
-    "build": "vite build",
+    "build": "npx tsx scripts/generate-openapi.ts && vite build",
+    "openapi": "npx tsx scripts/generate-openapi.ts",
     "preview": "vite preview",
     "prepare": "svelte-kit sync || echo ''",
     "check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
@@ -50,10 +52,13 @@
     "arctic": "^3.7.0",
     "argon2": "^0.43.1",
     "better-sqlite3": "^11.10.0",
-    "drizzle-orm": "^0.44.7",
+    "drizzle-orm": "^0.45.2",
     "idb": "^8.0.3",
     "lucide-svelte": "^0.577.0",
     "markdown-it": "^14.1.1",
+    "nanoid": "^5.1.7",
+    "node-diff3": "^3.2.0",
+    "nodemailer": "^8.0.2",
     "svelte-dnd-action": "^0.9.69",
     "tiptap-markdown": "^0.9.0",
     "uuid": "^11.1.0",
@@ -62,26 +67,30 @@
   },
   "devDependencies": {
     "@playwright/test": "^1.58.2",
-    "@sveltejs/kit": "^2.53.4",
+    "@sveltejs/kit": "^2.63.1",
     "@sveltejs/vite-plugin-svelte": "^6.2.4",
     "@tailwindcss/typography": "^0.5.19",
     "@tailwindcss/vite": "^4.2.1",
     "@types/better-sqlite3": "^7.6.13",
     "@types/markdown-it": "^14.1.2",
+    "@types/nodemailer": "^7.0.11",
     "@types/uuid": "^10.0.0",
     "@types/zxcvbn": "^4.4.5",
     "@vite-pwa/sveltekit": "^1.1.0",
-    "@vitest/coverage-v8": "^3.2.4",
+    "@vitest/coverage-v8": "^3.2.6",
     "drizzle-kit": "^0.31.9",
+    "jsdom": "^29.0.1",
     "nyc": "^18.0.0",
     "svelte": "^5.53.7",
     "svelte-check": "^4.4.4",
     "tailwindcss": "^4.2.1",
     "tsx": "^4.21.0",
     "typescript": "^5.9.3",
-    "vite": "^7.3.1",
+    "vite": "^7.3.5",
     "vite-plugin-istanbul": "^7.2.1",
-    "vitest": "^3.2.4",
+    "vite-plugin-pwa": "^1.2.0",
+    "vitest": "^3.2.6",
+    "workbox-window": "^7.4.0",
     "yaml": "^2.8.2"
   },
   "pnpm": {
@@ -93,7 +102,11 @@
     "overrides": {
       "serialize-javascript": ">=7.0.3",
       "esbuild@<0.25.0": "0.25.12",
-      "cookie": ">=0.7.0"
+      "cookie": ">=0.7.0",
+      "hono": ">=4.12.7",
+      "devalue": ">=5.8.1",
+      "path-to-regexp@8": ">=8.4.0",
+      "fast-uri": ">=3.1.2"
     }
   }
 }

playwright.config.ts

@@ -11,7 +11,8 @@ export default defineConfig({
 	use: {
 		baseURL: 'http://localhost:4173',
 		trace: 'on-first-retry',
-		screenshot: 'only-on-failure'
+		screenshot: 'only-on-failure',
+		serviceWorkers: 'block'
 	},
 	projects: [
 		{

scripts/generate-openapi.ts

@@ -0,0 +1,147 @@
+/**
+ * Auto-generates an OpenAPI spec from the SvelteKit route tree.
+ *
+ * Scans all +server.ts files under src/routes/api/ for exported HTTP methods and
+ * builds a minimal OpenAPI 3.1 spec at static/.well-known/openapi.json.
+ *
+ * Usage: npx tsx scripts/generate-openapi.ts
+ */
+
+import { readFileSync, writeFileSync, mkdirSync, readdirSync, statSync } from 'fs';
+import { resolve, relative, dirname, join } from 'path';
+
+const ROOT = process.cwd();
+const ROUTES_DIR = resolve(ROOT, 'src/routes/api');
+const OUTPUT = resolve(ROOT, 'static/api/openapi.json');
+
+const pkg = JSON.parse(readFileSync(resolve(ROOT, 'package.json'), 'utf-8'));
+
+function walkDir(dir: string): string[] {
+	const results: string[] = [];
+	for (const entry of readdirSync(dir)) {
+		const full = join(dir, entry);
+		if (statSync(full).isDirectory()) {
+			results.push(...walkDir(full));
+		} else if (entry === '+server.ts') {
+			results.push(full);
+		}
+	}
+	return results;
+}
+
+const HTTP_METHODS = ['GET', 'POST', 'PUT', 'PATCH', 'DELETE'] as const;
+const METHOD_RE = new RegExp(`export\\s+const\\s+(${HTTP_METHODS.join('|')})`, 'g');
+
+function svelteKitPathToOpenAPI(filePath: string): string {
+	const rel = relative(ROUTES_DIR, dirname(filePath));
+	const segments = rel === '' ? [] : rel.split('/');
+	const apiPath =
+		'/api/' +
+		segments
+			.map((s) => {
+				const match = s.match(/^\[(.+)\]$/);
+				return match ? `{${match[1]}}` : s;
+			})
+			.join('/');
+	return apiPath;
+}
+
+function extractMethods(filePath: string): string[] {
+	const content = readFileSync(filePath, 'utf-8');
+	const methods: string[] = [];
+	let match;
+	while ((match = METHOD_RE.exec(content)) !== null) {
+		methods.push(match[1].toLowerCase());
+	}
+	METHOD_RE.lastIndex = 0;
+	return methods;
+}
+
+function inferTag(path: string): string {
+	const first = path.replace('/api/', '').split('/')[0];
+	return first.charAt(0).toUpperCase() + first.slice(1);
+}
+
+function extractPathParams(path: string) {
+	const params: { name: string; in: string; required: boolean; schema: { type: string } }[] = [];
+	const re = /\{(\w+)\}/g;
+	let match;
+	while ((match = re.exec(path)) !== null) {
+		params.push({ name: match[1], in: 'path', required: true, schema: { type: 'string' } });
+	}
+	return params;
+}
+
+const files = walkDir(ROUTES_DIR);
+const paths: Record<string, Record<string, unknown>> = {};
+
+for (const fullPath of files) {
+	const apiPath = svelteKitPathToOpenAPI(fullPath);
+	const methods = extractMethods(fullPath);
+
+	if (methods.length === 0) continue;
+
+	const pathParams = extractPathParams(apiPath);
+	const pathEntry: Record<string, unknown> = {};
+
+	if (pathParams.length > 0) {
+		pathEntry.parameters = pathParams;
+	}
+
+	for (const method of methods) {
+		const operation: Record<string, unknown> = {
+			tags: [inferTag(apiPath)],
+			responses: {
+				'200': { description: 'Success' }
+			}
+		};
+
+		if (['post', 'put', 'patch'].includes(method)) {
+			operation.requestBody = {
+				content: {
+					'application/json': {
+						schema: { type: 'object' }
+					}
+				}
+			};
+		}
+
+		pathEntry[method] = operation;
+	}
+
+	paths[apiPath] = pathEntry;
+}
+
+const sortedPaths: Record<string, Record<string, unknown>> = {};
+for (const key of Object.keys(paths).sort()) {
+	sortedPaths[key] = paths[key];
+}
+
+const spec = {
+	openapi: '3.1.0',
+	info: {
+		title: `${pkg.name.charAt(0).toUpperCase() + pkg.name.slice(1)} API`,
+		description: `Auto-generated API spec for ${pkg.name}`,
+		version: pkg.version,
+		contact: {
+			name: 'Bretzel',
+			url: 'https://bretzel.app'
+		}
+	},
+	servers: [{ url: '/', description: 'Current instance' }],
+	security: [{ sessionCookie: [] }],
+	paths: sortedPaths,
+	components: {
+		securitySchemes: {
+			sessionCookie: {
+				type: 'apiKey',
+				in: 'cookie',
+				name: 'session'
+			}
+		}
+	}
+};
+
+mkdirSync(dirname(OUTPUT), { recursive: true });
+writeFileSync(OUTPUT, JSON.stringify(spec, null, 2) + '\n');
+console.log(`Generated ${relative(ROOT, OUTPUT)} with ${Object.keys(paths).length} paths`);

scripts/screenshots.ts

@@ -0,0 +1,110 @@
+import { chromium } from '@playwright/test';
+import { spawn, type ChildProcess } from 'child_process';
+import { existsSync, unlinkSync, mkdirSync } from 'fs';
+import { seed, login } from './screenshots/seed';
+import { captureDesktop, captureMobile } from './screenshots/capture';
+import {
+	BASE_URL,
+	SCREENSHOT_DB,
+	DESKTOP_VIEWPORT,
+	MOBILE_VIEWPORT,
+	OUTPUT_DIR
+} from './screenshots/constants';
+
+function cleanDatabase(): void {
+	for (const ext of ['', '-journal', '-wal', '-shm']) {
+		const path = `${SCREENSHOT_DB}${ext}`;
+		if (existsSync(path)) {
+			unlinkSync(path);
+			console.log(`  deleted ${path}`);
+		}
+	}
+}
+
+async function waitForServer(url: string, timeoutMs: number): Promise<void> {
+	const start = Date.now();
+	while (Date.now() - start < timeoutMs) {
+		try {
+			const res = await fetch(url);
+			if (res.ok || res.status === 302) return;
+		} catch {
+			// Server not ready yet
+		}
+		await new Promise((r) => setTimeout(r, 500));
+	}
+	throw new Error(`Server not reachable at ${url} after ${timeoutMs}ms`);
+}
+
+function startServer(): Promise<ChildProcess> {
+	return new Promise((resolve, reject) => {
+		const dir = SCREENSHOT_DB.substring(0, SCREENSHOT_DB.lastIndexOf('/'));
+		if (!existsSync(dir)) mkdirSync(dir, { recursive: true });
+
+		const server = spawn('pnpm', ['preview', '--port', '4173'], {
+			env: { ...process.env, DATABASE_URL: SCREENSHOT_DB, NODE_ENV: 'production' },
+			stdio: 'pipe'
+		});
+
+		server.on('error', reject);
+		server.on('exit', (code) => {
+			if (code !== null && code !== 0) reject(new Error(`Server exited with code ${code}`));
+		});
+
+		// Poll until server responds (stdout detection is unreliable in CI)
+		waitForServer(BASE_URL, 60_000)
+			.then(() => resolve(server))
+			.catch(reject);
+	});
+}
+
+async function main(): Promise<void> {
+	console.log('Screenshot automation starting...\n');
+
+	// 1. Clean DB
+	console.log('Cleaning database...');
+	cleanDatabase();
+
+	// 2. Ensure output dir exists
+	if (!existsSync(OUTPUT_DIR)) mkdirSync(OUTPUT_DIR, { recursive: true });
+
+	// 3. Start preview server
+	console.log('Starting preview server...');
+	const server = await startServer();
+	console.log('Server ready.\n');
+
+	const browser = await chromium.launch();
+
+	try {
+		// 4. Seed data (in desktop context)
+		console.log('Seeding data...');
+		const desktopContext = await browser.newContext({ viewport: DESKTOP_VIEWPORT });
+		const desktopPage = await desktopContext.newPage();
+		await seed(desktopPage);
+		console.log('Seed complete.\n');
+
+		// 5. Desktop screenshots
+		await captureDesktop(desktopPage);
+		await desktopContext.close();
+		console.log('');
+
+		// 6. Mobile screenshots (fresh context with mobile viewport)
+		const mobileContext = await browser.newContext({ viewport: MOBILE_VIEWPORT });
+		const mobilePage = await mobileContext.newPage();
+		await login(mobilePage);
+		await captureMobile(mobilePage);
+		await mobileContext.close();
+
+		console.log('\nAll screenshots captured successfully!');
+	} finally {
+		await browser.close();
+		server.kill('SIGTERM');
+		// Force exit — pnpm spawns vite as a grandchild process that
+		// server.kill() doesn't reach, leaving the CI job hanging
+		process.exit(0);
+	}
+}
+
+main().catch((err) => {
+	console.error('Screenshot automation failed:', err);
+	process.exit(1);
+});

scripts/screenshots/capture.ts

@@ -0,0 +1,103 @@
+import type { Page, Locator } from '@playwright/test';
+import { join } from 'path';
+import { BASE_URL, OUTPUT_DIR } from './constants';
+
+async function screenshot(page: Page, name: string): Promise<void> {
+	await page.screenshot({ path: join(OUTPUT_DIR, name), type: 'png' });
+	console.log(`  captured ${name}`);
+}
+
+async function waitForApp(page: Page): Promise<void> {
+	await page.waitForLoadState('networkidle');
+	await page.waitForTimeout(300);
+}
+
+/** Click a note card by its title (targets the h3 inside note-card to avoid content substring matches) */
+function noteCard(page: Page, title: string): Locator {
+	return page.locator('[data-testid="note-card"]', { has: page.locator('h3', { hasText: title }) });
+}
+
+export async function captureDesktop(page: Page): Promise<void> {
+	await page.emulateMedia({ reducedMotion: 'reduce' });
+	console.log('Capturing desktop screenshots...');
+
+	// D1: Grid view (also used as hero)
+	await page.goto(BASE_URL);
+	await waitForApp(page);
+	await screenshot(page, 'screenshot-grid.png');
+
+	// D2: Rich text editor — open "Self-Hosting Stack"
+	await noteCard(page, 'Self-Hosting Stack').click();
+	await page.waitForSelector('[data-testid="note-editor"]');
+	await waitForApp(page);
+	await screenshot(page, 'screenshot-editor.png');
+	await page.getByTestId('close-editor-btn').click();
+	await waitForApp(page);
+
+	// D3: Checklist — open "Bretzel Ingredients"
+	await noteCard(page, 'Bretzel Ingredients').click();
+	await page.waitForSelector('[data-testid="note-editor"]');
+	await waitForApp(page);
+	await screenshot(page, 'screenshot-checklist.png');
+	await page.getByTestId('close-editor-btn').click();
+	await waitForApp(page);
+
+	// D4: Sharing dialog — open "Weekend Plans", click share
+	await noteCard(page, 'Weekend Plans').click();
+	await page.waitForSelector('[data-testid="note-editor"]');
+	await page.getByTestId('share-toggle').click();
+	await page.waitForSelector('[data-testid="share-dialog"]');
+	await waitForApp(page);
+	await screenshot(page, 'screenshot-sharing.png');
+	await page.getByTestId('share-dialog-overlay').click({ position: { x: 10, y: 10 } });
+	await page.getByTestId('close-editor-btn').click();
+	await waitForApp(page);
+
+	// D5: Version history — open "Self-Hosting Stack", click history
+	await noteCard(page, 'Self-Hosting Stack').click();
+	await page.waitForSelector('[data-testid="note-editor"]');
+	await page.getByTestId('history-toggle').click();
+	await page.waitForSelector('[data-testid="history-panel"]');
+	// Wait for version items to load from API
+	await page.waitForSelector('[data-testid="version-item"]', { timeout: 10_000 });
+	const versionItems = page.getByTestId('version-item');
+	if ((await versionItems.count()) > 1) {
+		await versionItems.nth(1).click();
+	}
+	await waitForApp(page);
+	await screenshot(page, 'screenshot-history.png');
+	// Close history panel first (overlay blocks close-editor-btn)
+	await page.getByTestId('close-history-btn').click();
+	await waitForApp(page);
+	await page.getByTestId('close-editor-btn').click();
+	await waitForApp(page);
+
+	// D6: API/MCP settings
+	await page.goto(`${BASE_URL}/settings/mcp`);
+	await waitForApp(page);
+	await screenshot(page, 'screenshot-api.png');
+}
+
+export async function captureMobile(page: Page): Promise<void> {
+	await page.emulateMedia({ reducedMotion: 'reduce' });
+	console.log('Capturing mobile screenshots...');
+
+	// M1: Mobile grid view
+	await page.goto(BASE_URL);
+	await waitForApp(page);
+	await screenshot(page, 'screenshot-mobile-grid.png');
+
+	// M2: Mobile editor — open "Self-Hosting Stack"
+	await noteCard(page, 'Self-Hosting Stack').click();
+	await page.waitForSelector('[data-testid="note-editor"]');
+	await waitForApp(page);
+	await screenshot(page, 'screenshot-mobile-editor.png');
+	await page.getByTestId('close-editor-btn').click();
+	await waitForApp(page);
+
+	// M3: Mobile checklist — open "Bretzel Ingredients"
+	await noteCard(page, 'Bretzel Ingredients').click();
+	await page.waitForSelector('[data-testid="note-editor"]');
+	await waitForApp(page);
+	await screenshot(page, 'screenshot-mobile-checklist.png');
+}

scripts/screenshots/constants.ts

@@ -0,0 +1,18 @@
+export const BASE_URL = 'http://localhost:4173';
+export const SCREENSHOT_DB = './data/screenshots.db';
+export const OUTPUT_DIR = 'website/assets';
+
+export const DESKTOP_VIEWPORT = { width: 1280, height: 800 };
+export const MOBILE_VIEWPORT = { width: 390, height: 844 };
+
+export const ADMIN = {
+	email: 'admin@bretzel.app',
+	displayName: 'Bretzel Admin',
+	password: crypto.randomUUID()
+};
+
+export const COLLABORATOR = {
+	email: 'salzig@bretzel.app',
+	displayName: 'Salzig Bretzel',
+	password: crypto.randomUUID()
+};

scripts/screenshots/seed.ts

@@ -0,0 +1,271 @@
+import type { Page } from '@playwright/test';
+import { BASE_URL, ADMIN, COLLABORATOR } from './constants';
+
+type HttpMethod = 'post' | 'patch' | 'get' | 'delete';
+
+async function api(page: Page, method: HttpMethod, path: string, data?: unknown) {
+	const res = await page.request[method](
+		`${BASE_URL}${path}`,
+		data !== undefined ? { data } : undefined
+	);
+	if (!res.ok()) {
+		throw new Error(`${method.toUpperCase()} ${path} failed: ${res.status()} ${await res.text()}`);
+	}
+	const text = await res.text();
+	return text ? JSON.parse(text) : {};
+}
+
+interface NoteData {
+	key: string;
+	title: string;
+	content: string;
+	color: string;
+	pinned?: boolean;
+	checklistMode?: boolean;
+}
+
+function getNotesData(): NoteData[] {
+	// Created in reverse display order so newest (first created) appears last
+	// and the grid reads naturally top-left to bottom-right
+	return [
+		{
+			key: 'bakingcode',
+			title: 'Crumbs v0.23 Release',
+			content: `- [x] CRDT sync logic
+- [x] MCP server integration
+- [ ] Bake the Docker image
+- [ ] Deploy to the homelab
+- [ ] Celebrate with a bretzel`,
+			color: 'clay',
+			checklistMode: true
+		},
+		{
+			key: 'coding-music',
+			title: 'Coding Playlists',
+			content: `Curated on **Navidrome** for maximum focus.
+
+### Late Night Focus
+
+1. *Tycho* — Dive (ambient electronic)
+2. *Boards of Canada* — Music Has the Right to Children
+3. *Nujabes* — Modal Soul
+4. *C418* — Minecraft Volume Alpha
+
+### Saturday Baking
+
+For slow mornings in the kitchen:
+
+1. *Khruangbin* — Con Todo El Mundo
+2. *Tatsuro Yamashita* — For You
+
+#music #personal`,
+			color: 'chalk'
+		},
+		{
+			key: 'weekend',
+			title: 'Weekend Plans',
+			content: `### Saturday
+
+- Farmer's market — get sourdough starter
+- Fix the Dokploy SSL cert renewal
+- Bake a batch of bretzels
+
+### Sunday
+
+- Retro gaming marathon on *RetroAssembly*
+- Update the self-hosting stack
+- Plan next trip on **42**
+
+> A weekend well spent brings a week of content.
+
+#personal #weekend`,
+			color: 'mint'
+		},
+		{
+			key: 'manifesto',
+			title: '',
+			content: `The best software is the software you **own**. Self-host everything. Trust no cloud. 🥨
+
+#personal #selfhosting`,
+			color: 'coral'
+		},
+		{
+			key: 'retro',
+			title: 'Back to Retro Gaming',
+			content: `Games running on **RetroAssembly** this summer:
+
+- **Chrono Trigger** (SNES) — best RPG ever made
+- **Link's Awakening** (GB) — pure portable magic
+- **Symphony of the Night** (PS1) — the *definitive* Metroidvania
+- **Advance Wars** (GBA) — turn-based perfection
+- **Final Fantasy Tactics** (PS1) — political intrigue + job system
+
+> The pixel art era was peak game design.
+
+#gaming #retro`,
+			color: 'peach'
+		},
+		{
+			key: 'selfhosting',
+			title: 'Self-Hosting Stack',
+			content: `All services running behind **Caddy** reverse proxy on a single Hetzner VPS.
+
+### Core Services
+
+- **Crumbs** — notes *(obviously)*
+- **Dokploy** — deployment platform
+- **Outline** — team wiki
+
+### Monitoring
+
+> Everything that can break *will* break at 3 AM on a Sunday.
+
+Just getting started. More to come.
+
+#homelab #devops`,
+			color: 'fog'
+		},
+		{
+			key: 'bretzel',
+			title: 'Bretzel Ingredients',
+			content: `- [x] 500g bread flour
+- [x] 300ml warm water
+- [x] 10g salt
+- [ ] 7g dry yeast
+- [ ] 30g butter (softened)
+- [ ] Baking soda for the bath
+- [ ] Coarse salt for topping`,
+			color: 'sand',
+			checklistMode: true
+		}
+	];
+}
+
+function getVersionHistoryContents(): string[] {
+	return [
+		// Version 2: Add Navidrome + RetroAssembly
+		`All services running behind **Caddy** reverse proxy on a single Hetzner VPS.
+
+### Core Services
+
+- **Crumbs** — notes *(obviously)*
+- **Dokploy** — deployment platform
+- **Outline** — team wiki
+- **Navidrome** — music streaming
+- **RetroAssembly** — retro game emulation
+
+### Monitoring
+
+> Everything that can break *will* break at 3 AM on a Sunday.
+
+Growing the stack.
+
+#homelab #devops`,
+
+		// Version 3: Add 42 + Umami
+		`All services running behind **Caddy** reverse proxy on a single Hetzner VPS.
+
+### Core Services
+
+- **Crumbs** — notes *(obviously)*
+- **42** — holiday budget tracking
+- **Dokploy** — deployment platform
+- **Outline** — team wiki
+- **Navidrome** — music streaming
+- **RetroAssembly** — retro game emulation
+- **Umami** — privacy-first analytics
+
+### Monitoring
+
+> Everything that can break *will* break at 3 AM on a Sunday.
+
+The stack is getting serious.
+
+#homelab #devops`,
+
+		// Version 4: Final version
+		`All services running behind **Caddy** reverse proxy on a single Hetzner VPS.
+
+### Core Services
+
+- **Crumbs** — notes *(obviously)*
+- **42** — holiday budget tracking
+- **Dokploy** — deployment platform
+- **Outline** — team wiki
+- **Navidrome** — music streaming
+- **RetroAssembly** — retro game emulation
+- **Umami** — privacy-first analytics
+
+### Monitoring
+
+> Everything that can break *will* break at 3 AM on a Sunday.
+
+Everything below daily reverse proxy. The dream stack is *almost* complete.
+
+#homelab #devops`
+	];
+}
+
+export async function seed(page: Page): Promise<void> {
+	// 1. Setup admin (sets session cookie)
+	await api(page, 'post', '/api/auth/setup', {
+		email: ADMIN.email,
+		displayName: ADMIN.displayName,
+		password: ADMIN.password
+	});
+	console.log('  admin created');
+
+	// 2. Create collaborator user
+	const alice = await api(page, 'post', '/api/admin/users', {
+		email: COLLABORATOR.email,
+		displayName: COLLABORATOR.displayName,
+		password: COLLABORATOR.password,
+		role: 'user'
+	});
+	const aliceId: number = alice.id;
+	console.log('  collaborator created (id:', aliceId, ')');
+
+	// 3. Create notes (order matters — newest appear first in grid)
+	const noteData = getNotesData();
+	const noteIds: Record<string, string> = {};
+	for (const note of noteData) {
+		const created = await api(page, 'post', '/api/notes', {
+			title: note.title,
+			content: note.content,
+			color: note.color,
+			pinned: note.pinned ?? false,
+			checklistMode: note.checklistMode ?? false
+		});
+		noteIds[note.key] = created.id;
+		console.log('  note created:', note.title);
+	}
+
+	// 4. Share "Weekend Plans" with Alice
+	await api(page, 'post', `/api/notes/${noteIds['weekend']}/collaborators`, {
+		userId: aliceId
+	});
+	console.log('  shared "Weekend Plans" with Alice');
+
+	// 5. Create version history for "Self-Hosting Stack"
+	const versionContents = getVersionHistoryContents();
+	for (let i = 0; i < versionContents.length; i++) {
+		await api(page, 'patch', `/api/notes/${noteIds['selfhosting']}`, {
+			content: versionContents[i]
+		});
+		console.log(`  version ${i + 2} created for "Self-Hosting Stack"`);
+	}
+
+	// 6. Create API keys
+	await api(page, 'post', '/api/settings/api-keys', { name: 'Claude Code' });
+	await api(page, 'post', '/api/settings/api-keys', { name: 'N8N' });
+	console.log('  API keys created');
+}
+
+export async function login(page: Page): Promise<void> {
+	await page.goto(`${BASE_URL}/login`);
+	await page.getByTestId('email-input').fill(ADMIN.email);
+	await page.getByTestId('password-input').fill(ADMIN.password);
+	await page.getByTestId('login-btn').click();
+	await page.waitForURL('**/');
+	await page.waitForLoadState('networkidle');
+}

src/app.css

@@ -20,6 +20,25 @@
 	--success-text: #3a5a2e;
 	--card-shadow: 2px 2px 0px var(--border-subtle);
 	--card-shadow-hover: 3px 3px 0px var(--primary);
+	--grid-dot: #1a1a2e;
+}
+
+[data-theme="dark"] {
+	--bg-base: #1a1715;
+	--bg-surface: #2a2520;
+	--text: #e8dcc8;
+	--text-muted: #9a8e7e;
+	--border: #e8dcc8;
+	--border-subtle: #3a3530;
+	--destructive: #d4604e;
+	--error-bg: #3a2020;
+	--error-border: #5a3030;
+	--error-text: #e8a090;
+	--success-bg: #203020;
+	--success-text: #90c880;
+	--card-shadow: 2px 2px 0px var(--border-subtle);
+	--card-shadow-hover: 3px 3px 0px var(--primary);
+	--grid-dot: #e8dcc8;
 }
 
 body {
@@ -33,7 +52,7 @@ body::before {
 	inset: 0;
 	pointer-events: none;
 	opacity: 0.03;
-	background-image: repeating-conic-gradient(#1a1a2e 0% 25%, transparent 0% 50%);
+	background-image: repeating-conic-gradient(var(--grid-dot) 0% 25%, transparent 0% 50%);
 	background-size: 4px 4px;
 	z-index: 0;
 }
@@ -116,12 +135,20 @@ body::before {
 .tiptap ul[data-type="taskList"] li,
 .prose ul.task-list li {
 	display: flex;
-	align-items: center;
+	align-items: flex-start;
+	flex-wrap: wrap;
 	gap: 0.375rem;
 	margin: 0;
 	padding: 0;
 }
 
+/* Nested task lists take full width below the parent item */
+.tiptap ul[data-type="taskList"] li > ul[data-type="taskList"],
+.prose ul.task-list li > ul.task-list {
+	flex-basis: 100%;
+	padding-left: 1.5rem;
+}
+
 .tiptap ul[data-type="taskList"] li::marker,
 .prose ul.task-list li::marker {
 	content: none;
@@ -132,6 +159,7 @@ body::before {
 	display: flex;
 	align-items: center;
 	flex-shrink: 0;
+	margin-top: 0.125rem;
 }
 
 /* Shared checkbox styles */
@@ -139,6 +167,7 @@ body::before {
 .prose ul.task-list .task-checkbox {
 	cursor: pointer;
 	margin: 0;
+	margin-top: 0.2em;
 	flex-shrink: 0;
 }
 
@@ -176,3 +205,41 @@ body::before {
 .prose ul.task-list li p {
 	margin: 0;
 }
+
+/* Checklist link styles */
+.checklist-link {
+	color: var(--primary);
+	text-decoration: underline;
+	text-underline-offset: 2px;
+}
+
+.checklist-link:hover {
+	color: var(--primary-hover);
+}
+
+[data-placeholder]:empty::before {
+	content: attr(data-placeholder);
+	color: var(--text-muted);
+	pointer-events: none;
+}
+
+/* Custom tooltips */
+.tooltip-popup {
+	position: fixed;
+	z-index: 9999;
+	padding: 0.25rem 0.5rem;
+	font-family: 'JetBrains Mono', monospace;
+	font-size: 0.7rem;
+	line-height: 1.2;
+	color: var(--bg-surface);
+	background: var(--text);
+	border-radius: 2px;
+	pointer-events: none;
+	white-space: nowrap;
+	opacity: 0;
+	transition: opacity 100ms ease-out;
+}
+
+.tooltip-visible {
+	opacity: 1;
+}

src/app.d.ts

@@ -1,3 +1,6 @@
+/// <reference types="vite-plugin-pwa/info" />
+/// <reference types="vite-plugin-pwa/vanillajs" />
+
 // See https://svelte.dev/docs/kit/types#app.d.ts
 // for information about these interfaces
 declare global {

src/app.html

@@ -4,6 +4,21 @@
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <meta name="theme-color" content="#f0e6d3" />
+    <script>
+      (function() {
+        try {
+          var p = JSON.parse(localStorage.getItem('crumbs-preferences') || '{}');
+          var t = p.theme || 'system';
+          if (t !== 'light' && t !== 'dark') t = 'system';
+          if (t === 'system') t = matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
+          if (t === 'dark') {
+            document.documentElement.setAttribute('data-theme', 'dark');
+            var m = document.querySelector('meta[name="theme-color"]');
+            if (m) m.content = '#1a1715';
+          }
+        } catch(e) {}
+      })();
+    </script>
     <link rel="preconnect" href="https://fonts.googleapis.com" />
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
     <link rel="icon" type="image/png" href="/favicon-96x96.png" sizes="96x96" />
@@ -11,7 +26,6 @@
     <link rel="shortcut icon" href="/favicon.ico" />
     <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png" />
     <meta name="apple-mobile-web-app-title" content="Crumbs" />
-    <link rel="manifest" href="/site.webmanifest" />
     <title>Crumbs</title>
     %sveltekit.head%
   </head>

src/hooks.server.ts

@@ -8,7 +8,9 @@ const PUBLIC_PATHS = [
 	'/setup',
 	'/api/auth/login',
 	'/api/auth/setup',
-	'/api/auth/oauth'
+	'/api/auth/oauth',
+	'/s/',
+	'/api/shared'
 ];
 
 export const handle: Handle = async ({ event, resolve }) => {

src/lib/__mocks__/app-environment.ts

@@ -0,0 +1,5 @@
+// Mock for $app/environment used in Vitest unit tests
+export const browser = true;
+export const dev = false;
+export const building = false;
+export const version = 'test';

src/lib/__mocks__/svelte-runes.ts

@@ -0,0 +1,11 @@
+/**
+ * Polyfill Svelte 5 runes for Vitest.
+ * The Svelte compiler transforms these in .svelte and .svelte.ts files,
+ * but Vitest doesn't run the Svelte compiler, so we provide plain-JS stubs.
+ */
+/* eslint-disable @typescript-eslint/no-explicit-any */
+
+(globalThis as any).$state = <T>(initial: T): T => initial;
+(globalThis as any).$derived = <T>(value: T): T => value;
+(globalThis as any).$effect = (_fn: () => void): void => {};
+(globalThis as any).$props = (): any => ({});

src/lib/components/Checklist.svelte

@@ -3,14 +3,11 @@
 	import Plus from 'lucide-svelte/icons/plus';
 	import GripVertical from 'lucide-svelte/icons/grip-vertical';
 	import ChevronRight from 'lucide-svelte/icons/chevron-right';
+	import { onDestroy } from 'svelte';
 	import { dragHandleZone, dragHandle, type DndEvent } from 'svelte-dnd-action';
 	import { flip } from 'svelte/animate';
-
-	interface ChecklistItem {
-		id: string;
-		text: string;
-		checked: boolean;
-	}
+	import { type ChecklistItem, generateId, parseChecklist, serializeChecklist, toggleItemWithCascade, indentItem, outdentItem, linkifyText, unlinkifyHtml } from '$lib/utils/checklist.js';
+	import LinkPopover from './LinkPopover.svelte';
 
 	interface Props {
 		content: string;
@@ -23,64 +20,106 @@
 	let items = $state<ChecklistItem[]>(parseChecklist(content));
 	let doneExpanded = $state(true);
 	const flipDurationMs = 150;
+	let linkPopover = $state<{ url: string; anchor: DOMRect } | null>(null);
+
+	// Track the last content we emitted so we can distinguish self-originated
+	// changes from external ones (sync, history restore, etc.)
+	let lastEmitted = content;
+
+	// Re-parse items when content changes externally (not from our own emitChange)
+	$effect(() => {
+		if (content !== lastEmitted) {
+			items = parseChecklist(content);
+			lastEmitted = content;
+		}
+	});
 
 	let activeItems = $derived(items.filter((i) => !i.checked));
 	let doneItems = $derived(items.filter((i) => i.checked));
 	let doneCount = $derived(doneItems.length);
 
-	function generateId(): string {
-		return crypto.randomUUID();
+	interface DoneSectionGroup {
+		parentLabel: ChecklistItem | null;
+		children: ChecklistItem[];
 	}
 
-	function parseChecklist(text: string): ChecklistItem[] {
-		if (!text.trim()) return [{ id: generateId(), text: '', checked: false }];
-		const lines = text.split('\n');
-		return lines.map((line) => {
-			if (line.startsWith('- [x] ')) return { id: generateId(), text: line.slice(6), checked: true };
-			if (line.startsWith('- [ ] ')) return { id: generateId(), text: line.slice(6), checked: false };
-			return { id: generateId(), text: line, checked: false };
-		});
-	}
+	let doneSectionGroups = $derived.by(() => {
+		const groups: DoneSectionGroup[] = [];
+		const childrenByParent = new Map<string, ChecklistItem[]>();
+		const topLevelDone: ChecklistItem[] = [];
 
-	function serializeChecklist(list: ChecklistItem[]): string {
-		return list
-			.map((item) => `- [${item.checked ? 'x' : ' '}] ${item.text}`)
-			.join('\n');
-	}
+		for (const item of doneItems) {
+			if (item.parentId) {
+				const siblings = childrenByParent.get(item.parentId) ?? [];
+				siblings.push(item);
+				childrenByParent.set(item.parentId, siblings);
+			} else {
+				topLevelDone.push(item);
+			}
+		}
+
+		for (const item of topLevelDone) {
+			const doneChildren = childrenByParent.get(item.id) ?? [];
+			groups.push({ parentLabel: null, children: [item, ...doneChildren] });
+			childrenByParent.delete(item.id);
+		}
+
+		for (const [parentId, children] of childrenByParent) {
+			const parent = items.find((i) => i.id === parentId);
+			if (parent) {
+				groups.push({ parentLabel: parent, children });
+			} else {
+				groups.push({ parentLabel: null, children });
+			}
+		}
+
+		return groups;
+	});
 
 	function emitChange() {
-		onChange(serializeChecklist(items));
+		const serialized = serializeChecklist(items);
+		lastEmitted = serialized;
+		onChange(serialized);
 	}
 
 	function toggleItem(id: string) {
-		const item = items.find((i) => i.id === id);
-		if (item) {
-			item.checked = !item.checked;
-			emitChange();
-		}
+		items = toggleItemWithCascade(id, items);
+		emitChange();
 	}
 
-	function updateText(id: string, text: string) {
+	function updateText(id: string, innerHTML: string) {
 		const item = items.find((i) => i.id === id);
 		if (item) {
-			item.text = text;
+			item.text = unlinkifyHtml(innerHTML);
 			emitChange();
 		}
 	}
 
 	function addItem(afterIndex: number) {
-		const newItem = { id: generateId(), text: '', checked: false };
+		const afterItem = items[afterIndex];
+		const newItem: ChecklistItem = {
+			id: generateId(),
+			text: '',
+			checked: false,
+			parentId: afterItem?.parentId ?? null
+		};
 		items.splice(afterIndex + 1, 0, newItem);
 		items = [...items];
 		emitChange();
+		const newId = newItem.id;
 		setTimeout(() => {
-			const inputs = document.querySelectorAll<HTMLInputElement>('[data-testid="checklist-input"]');
-			inputs[afterIndex + 1]?.focus();
+			document.querySelector<HTMLElement>(`[data-item-id="${newId}"]`)?.focus();
 		}, 0);
 	}
 
 	function removeItem(id: string) {
-		if (items.length <= 1) return;
+		if (items.length <= 1) {
+			if (items[0].parentId) items[0].parentId = null;
+			items = [...items];
+			emitChange();
+			return;
+		}
+		items = items.map((i) => (i.parentId === id ? { ...i, parentId: null } : i));
 		const index = items.findIndex((i) => i.id === id);
 		items.splice(index, 1);
 		items = [...items];
@@ -96,33 +135,178 @@
 			e.preventDefault();
 			removeItem(id);
 			setTimeout(() => {
-				const inputs = document.querySelectorAll<HTMLInputElement>('[data-testid="checklist-input"]');
+				const inputs = document.querySelectorAll<HTMLElement>('[data-testid="checklist-input"]');
 				inputs[Math.max(0, index - 1)]?.focus();
 			}, 0);
+		} else if (e.key === 'ArrowUp' || e.key === 'ArrowDown') {
+			const inputs = Array.from(document.querySelectorAll<HTMLElement>('[data-testid="checklist-input"]'));
+			const current = inputs.findIndex((el) => el.dataset.itemId === id);
+			const target = e.key === 'ArrowUp' ? current - 1 : current + 1;
+			if (target >= 0 && target < inputs.length) {
+				e.preventDefault();
+				inputs[target].focus();
+			}
+		} else if (e.key === 'Tab' && !e.shiftKey) {
+			e.preventDefault();
+			items = indentItem(id, items, activeItems);
+			emitChange();
+		} else if (e.key === 'Tab' && e.shiftKey) {
+			e.preventDefault();
+			items = outdentItem(id, items);
+			emitChange();
 		}
 	}
 
+	// Svelte action: sets innerHTML on mount and syncs from external changes only.
+	// While the user is typing (element is focused), we don't re-render — that would
+	// destroy the cursor. Linkification happens on blur via the onblur handler.
+	function editableContent(node: HTMLElement, text: string) {
+		node.innerHTML = linkifyText(text);
+		return {
+			update(newText: string) {
+				if (document.activeElement !== node) {
+					node.innerHTML = linkifyText(newText);
+				}
+			}
+		};
+	}
+
+	function handleLinkClick(e: MouseEvent) {
+		const target = e.target as HTMLElement;
+		const anchor = target.closest('a');
+		if (anchor) {
+			e.preventDefault();
+			e.stopPropagation();
+			linkPopover = { url: anchor.href, anchor: anchor.getBoundingClientRect() };
+		}
+	}
+
+	function handlePaste(e: ClipboardEvent) {
+		e.preventDefault();
+		const text = (e.clipboardData?.getData('text/plain') ?? '').replace(/[\r\n]+/g, ' ');
+		const selection = window.getSelection();
+		if (!selection?.rangeCount) return;
+		const range = selection.getRangeAt(0);
+		range.deleteContents();
+		range.insertNode(document.createTextNode(text));
+		range.collapse(false);
+		selection.removeAllRanges();
+		selection.addRange(range);
+		(e.target as HTMLElement).dispatchEvent(new Event('input', { bubbles: true }));
+	}
+
+	// --- Directional lock drag handle ---
+	// Instead of blocking DnD events (which corrupts its internal state),
+	// we detect horizontal intent and store the pending operation. DnD runs
+	// its full course unimpeded. After DnD finalizes, we apply the indent.
+	let dragStartX = 0;
+	let dragStartY = 0;
+	let pendingIndent: { id: string; direction: 'indent' | 'outdent' } | null = null;
+	let directionLocked = false;
+	const LOCK_THRESHOLD = 10;
+	const INDENT_THRESHOLD = 32;
+
+	function windowPointerMove(e: PointerEvent) {
+		if (directionLocked) return;
+
+		const dx = Math.abs(e.clientX - dragStartX);
+		const dy = Math.abs(e.clientY - dragStartY);
+		if (dx >= LOCK_THRESHOLD || dy >= LOCK_THRESHOLD) {
+			directionLocked = true;
+			if (dx <= dy) {
+				// Vertical — DnD handles it, we're done
+				removeWindowListeners();
+			}
+			// Horizontal — keep listening for pointerup to measure total dx
+		}
+	}
+
+	function windowPointerUp(e: PointerEvent) {
+		const dx = e.clientX - dragStartX;
+		if (Math.abs(dx) > INDENT_THRESHOLD && directionLocked && currentDragItemId) {
+			pendingIndent = {
+				id: currentDragItemId,
+				direction: dx > 0 ? 'indent' : 'outdent'
+			};
+		}
+		removeWindowListeners();
+		directionLocked = false;
+	}
+
+	function addWindowListeners() {
+		window.addEventListener('pointermove', windowPointerMove, { capture: true });
+		window.addEventListener('pointerup', windowPointerUp, { capture: true });
+	}
+
+	function removeWindowListeners() {
+		window.removeEventListener('pointermove', windowPointerMove, { capture: true });
+		window.removeEventListener('pointerup', windowPointerUp, { capture: true });
+	}
+
+	let currentDragItemId = '';
+	function handleDragPointerDown(e: PointerEvent, id: string) {
+		dragStartX = e.clientX;
+		dragStartY = e.clientY;
+		directionLocked = false;
+		pendingIndent = null;
+		currentDragItemId = id;
+		addWindowListeners();
+	}
+
+	onDestroy(removeWindowListeners);
+
+	// --- DnD handlers ---
+	function recomputeParentIds(reorderedItems: ChecklistItem[]): ChecklistItem[] {
+		let lastTopLevelId: string | null = null;
+		return reorderedItems.map((item) => {
+			if (item.parentId === null) {
+				lastTopLevelId = item.id;
+				return item;
+			}
+			return { ...item, parentId: lastTopLevelId };
+		});
+	}
+
 	function handleDndConsider(e: CustomEvent<DndEvent<ChecklistItem>>) {
-		// Merge reordered active items with done items
 		items = [...e.detail.items, ...items.filter((i) => i.checked)];
 	}
 
 	function handleDndFinalize(e: CustomEvent<DndEvent<ChecklistItem>>) {
-		items = [...e.detail.items, ...items.filter((i) => i.checked)];
+		const reorderedActive = recomputeParentIds(e.detail.items);
+		items = [...reorderedActive, ...items.filter((i) => i.checked)];
 		emitChange();
+
+		// Apply pending indent/outdent from horizontal drag (after DnD fully cleans up)
+		if (pendingIndent && pendingIndent.id) {
+			const { id, direction } = pendingIndent;
+			pendingIndent = null;
+			if (direction === 'indent') {
+				items = indentItem(id, items, activeItems);
+			} else {
+				items = outdentItem(id, items);
+			}
+			emitChange();
+		}
 	}
 </script>
 
 <div class="space-y-0.5" data-testid="checklist">
 	<section
-		use:dragHandleZone={{ items: activeItems, flipDurationMs, dropTargetStyle: {} }}
+		use:dragHandleZone={{ items: activeItems, flipDurationMs, dropTargetStyle: { outline: 'none' } }}
 		onconsider={handleDndConsider}
 		onfinalize={handleDndFinalize}
 		class="space-y-0.5"
 	>
 		{#each activeItems as item (item.id)}
-			<div class="group flex items-center gap-2 py-1" animate:flip={{ duration: flipDurationMs }}>
-				<div use:dragHandle aria-label="drag handle" class="drag-handle cursor-grab max-md:opacity-100 md:opacity-0 md:group-hover:opacity-100 focus:opacity-100 transition-opacity duration-150" data-testid="checklist-drag-handle">
+			<div class="group flex items-center gap-2 py-1.5 outline-none {item.parentId ? 'pl-8' : ''}"
+				data-testid={item.parentId ? 'checklist-child-row' : undefined}
+				animate:flip={{ duration: flipDurationMs }}>
+				<!-- svelte-ignore a11y_no_static_element_interactions -->
+				<div use:dragHandle
+					aria-label="drag handle"
+					onpointerdown={(e) => handleDragPointerDown(e, item.id)}
+					class="drag-handle cursor-grab max-md:opacity-100 md:opacity-0 md:group-hover:opacity-100 focus:opacity-100 transition-opacity duration-150 touch-none outline-none"
+					data-testid="checklist-drag-handle">
 					<GripVertical class="h-4 w-4 text-[var(--text-muted)]" />
 				</div>
 				<input
@@ -132,15 +316,30 @@
 					class="h-4 w-4 rounded border-[var(--border-subtle)] text-[var(--primary)] focus:ring-[var(--primary)]"
 					data-testid="checklist-checkbox"
 				/>
-				<input
-					type="text"
-					value={item.text}
-					oninput={(e) => updateText(item.id, (e.target as HTMLInputElement).value)}
+				<!-- svelte-ignore a11y_no_static_element_interactions -->
+				<div
+					contenteditable="true"
+					use:editableContent={item.text}
+					oninput={(e) => updateText(item.id, (e.target as HTMLElement).innerHTML)}
 					onkeydown={(e) => handleKeydown(e, item.id)}
-					class="flex-1 bg-transparent text-sm outline-none {item.checked ? 'text-[var(--text-muted)] line-through' : 'text-[var(--text)]'}"
-					placeholder="List item"
+					onclick={handleLinkClick}
+					onpaste={handlePaste}
+					onblur={(e) => {
+						const el = e.currentTarget as HTMLElement;
+						requestAnimationFrame(() => {
+							if (el.isConnected && !el.contains(document.activeElement)) {
+								el.innerHTML = linkifyText(item.text);
+							}
+						});
+					}}
+					class="flex-1 min-w-0 bg-transparent text-sm outline-none break-words {item.checked ? 'text-[var(--text-muted)] line-through' : 'text-[var(--text)]'}"
+					data-placeholder="List item"
+					aria-placeholder="List item"
 					data-testid="checklist-input"
-				/>
+					data-item-id={item.id}
+					role="textbox"
+					tabindex="0"
+				></div>
 				<button
 					onclick={() => removeItem(item.id)}
 					class="max-md:opacity-100 md:opacity-0 md:group-hover:opacity-100 focus:opacity-100"
@@ -155,7 +354,7 @@
 
 	<button
 		onclick={() => addItem(items.length - 1)}
-		class="flex items-center gap-2 text-sm text-[var(--text-muted)] hover:text-[var(--text)]"
+		class="flex items-center gap-2 py-1.5 text-sm text-[var(--text-muted)] hover:text-[var(--text)]"
 		data-testid="checklist-add"
 	>
 		<Plus class="h-4 w-4" />
@@ -174,29 +373,42 @@
 			</button>
 
 			{#if doneExpanded}
-				<div class="mt-1 space-y-0.5 pl-5" data-testid="checklist-done-section">
-					{#each doneItems as item (item.id)}
-						<div class="group flex items-center gap-2 py-1">
-							<input
-								type="checkbox"
-								checked={item.checked}
-								onchange={() => toggleItem(item.id)}
-								class="h-4 w-4 rounded border-[var(--border-subtle)] text-[var(--primary)] focus:ring-[var(--primary)]"
-								data-testid="checklist-done-checkbox"
-							/>
-							<span class="flex-1 text-sm text-[var(--text-muted)] line-through">{item.text}</span>
-							<button
-								onclick={() => removeItem(item.id)}
-								class="max-md:opacity-100 md:opacity-0 md:group-hover:opacity-100 focus:opacity-100"
-								aria-label="Remove item"
-								data-testid="checklist-done-remove"
-							>
-								<XIcon class="h-4 w-4 text-[var(--text-muted)]" />
-							</button>
-						</div>
+				<div class="mt-1 space-y-0.5" data-testid="checklist-done-section">
+					{#each doneSectionGroups as group}
+						{#if group.parentLabel}
+							<div class="flex items-center gap-2 py-1.5 pl-5" data-testid="checklist-done-parent-label">
+								<input type="checkbox" disabled class="h-4 w-4 rounded border-[var(--border-subtle)] opacity-50" />
+								<span class="text-sm text-[var(--text-muted)] break-words min-w-0">{@html linkifyText(group.parentLabel.text)}</span>
+							</div>
+						{/if}
+						{#each group.children as item (item.id)}
+							<div class="group flex items-center gap-2 py-1.5 {item.parentId ? 'pl-10' : 'pl-5'}">
+								<input
+									type="checkbox"
+									checked={item.checked}
+									onchange={() => toggleItem(item.id)}
+									class="h-4 w-4 rounded border-[var(--border-subtle)] text-[var(--primary)] focus:ring-[var(--primary)]"
+									data-testid="checklist-done-checkbox"
+								/>
+								<span class="flex-1 text-sm text-[var(--text-muted)] line-through break-words min-w-0">{@html linkifyText(item.text)}</span>
+								<button
+									onclick={() => removeItem(item.id)}
+									class="max-md:opacity-100 md:opacity-0 md:group-hover:opacity-100 focus:opacity-100"
+									aria-label="Remove item"
+									data-testid="checklist-done-remove"
+								>
+									<XIcon class="h-4 w-4 text-[var(--text-muted)]" />
+								</button>
+							</div>
+						{/each}
 					{/each}
 				</div>
 			{/if}
 		</div>
 	{/if}
+
+	{#if linkPopover}
+		<LinkPopover url={linkPopover.url} anchor={linkPopover.anchor} onClose={() => (linkPopover = null)} />
+	{/if}
 </div>
+

src/lib/components/ColorPicker.svelte

@@ -1,5 +1,6 @@
 <script lang="ts">
-	import { NOTE_COLORS, COLOR_OPTIONS } from '$lib/utils/colors.js';
+	import { COLOR_OPTIONS, getNoteColor } from '$lib/utils/colors.js';
+	import { getIsDarkMode } from '$lib/utils/theme.svelte.js';
 	import type { NoteColor } from '$lib/types/index.js';
 
 	interface Props {
@@ -12,11 +13,10 @@
 
 <div class="flex flex-wrap gap-1" data-testid="color-picker">
 	{#each COLOR_OPTIONS as option}
-		{@const colors = NOTE_COLORS[option.value]}
 		<button
 			onclick={() => onSelect(option.value)}
 			class="h-8 w-8 rounded-full border-2 transition-transform hover:scale-110 {selected === option.value ? 'border-[var(--text)]' : 'border-[var(--border-subtle)]'}"
-			style="background-color: {colors.bg}"
+			style="background-color: {getNoteColor(option.value, getIsDarkMode())}"
 			title={option.label}
 			data-testid="color-{option.value}"
 		></button>

src/lib/components/LinkPopover.svelte

@@ -0,0 +1,73 @@
+<script lang="ts">
+	import ExternalLink from 'lucide-svelte/icons/external-link';
+	import { onMount } from 'svelte';
+
+	interface Props {
+		url: string;
+		anchor: DOMRect;
+		onClose: () => void;
+	}
+
+	let { url, anchor, onClose }: Props = $props();
+
+	let popoverEl: HTMLDivElement | undefined = $state();
+	let top = $state(0);
+	let left = $state(0);
+
+	onMount(() => {
+		if (!popoverEl) return;
+		const rect = popoverEl.getBoundingClientRect();
+
+		// Position below the anchor link, or above if near viewport bottom
+		const spaceBelow = window.innerHeight - anchor.bottom;
+		if (spaceBelow >= rect.height + 8) {
+			top = anchor.bottom + 4;
+		} else {
+			top = anchor.top - rect.height - 4;
+		}
+
+		left = anchor.left;
+		// Clamp to viewport
+		if (left + rect.width > window.innerWidth - 8) {
+			left = window.innerWidth - rect.width - 8;
+		}
+		if (left < 8) left = 8;
+	});
+
+	function handleClickOutside(e: MouseEvent) {
+		if (popoverEl && !popoverEl.contains(e.target as Node)) {
+			onClose();
+		}
+	}
+
+	function handleKeydown(e: KeyboardEvent) {
+		if (e.key === 'Escape') {
+			onClose();
+		}
+	}
+
+	function openLink() {
+		window.open(url, '_blank', 'noopener');
+		onClose();
+	}
+</script>
+
+<svelte:window onclick={handleClickOutside} onkeydown={handleKeydown} onscroll={onClose} onresize={onClose} />
+
+<!-- svelte-ignore a11y_no_static_element_interactions -->
+<div
+	bind:this={popoverEl}
+	class="fixed z-50 flex items-center gap-1.5 rounded-sm border border-[var(--border-subtle)] bg-[var(--bg-surface)] px-2 py-1.5 shadow-[var(--card-shadow)]"
+	style="top: {top}px; left: {left}px;"
+	onclick={(e) => e.stopPropagation()}
+	data-testid="link-popover"
+>
+	<button
+		onclick={openLink}
+		class="flex items-center gap-1 text-xs text-[var(--primary)] hover:text-[var(--primary-hover)]"
+		data-testid="link-popover-open"
+	>
+		<ExternalLink class="h-3.5 w-3.5" />
+		Open
+	</button>
+</div>

src/lib/components/NoteCard.svelte

@@ -1,9 +1,10 @@
 <script lang="ts">
-	import { NOTE_COLORS } from '$lib/utils/colors.js';
+	import { getNoteColor } from '$lib/utils/colors.js';
+	import { getIsDarkMode } from '$lib/utils/theme.svelte.js';
 	import { renderMarkdown } from '$lib/utils/markdown.js';
-	import { togglePin, trashNote, archiveNote, unarchiveNote, restoreNote, deleteNote, updateNote, leaveNote, currentFilter } from '$lib/stores/notes.js';
+	import { togglePin, trashNote, archiveNote, unarchiveNote, restoreNote, deleteNote, leaveNote, currentFilter } from '$lib/stores/notes.js';
 	import ImageLightbox from './ImageLightbox.svelte';
-	import CollaboratorPopover from './CollaboratorPopover.svelte';
+	import SharingIndicator from './SharingIndicator.svelte';
 	import type { Note } from '$lib/types/index.js';
 	import Undo2 from 'lucide-svelte/icons/undo-2';
 	import Trash2 from 'lucide-svelte/icons/trash-2';
@@ -11,10 +12,13 @@
 	import Archive from 'lucide-svelte/icons/archive';
 	import ArchiveRestore from 'lucide-svelte/icons/archive-restore';
 	import UserMinus from 'lucide-svelte/icons/user-minus';
+	import { tooltip } from '$lib/utils/tooltip.js';
+	import { linkifyText } from '$lib/utils/checklist.js';
 
 	interface ChecklistItem {
 		text: string;
 		checked: boolean;
+		indented: boolean;
 	}
 
 	interface Props {
@@ -26,8 +30,7 @@
 	let { note, onEdit, fullHeight = false }: Props = $props();
 
 	$effect(() => {
-		const colors = NOTE_COLORS[note.color];
-		cardStyle = `background-color: ${colors.bg}`;
+		cardStyle = `background-color: ${getNoteColor(note.color, getIsDarkMode())}`;
 	});
 
 	let cardStyle = $state('');
@@ -38,10 +41,14 @@
 
 	const checklistItems = $derived<ChecklistItem[]>(
 		note.checklistMode
-			? note.content.split('\n').filter(l => l.trim()).map(line => ({
-					text: line.replace(/^- \[[ x]\] /, ''),
-					checked: line.startsWith('- [x] ')
-				}))
+			? note.content.split('\n').filter(l => l.trim()).map(line => {
+					const indented = line.startsWith('  - [');
+					return {
+						text: line.replace(/^ {0,2}- \[[ x]\] /, ''),
+						checked: /^ {0,2}- \[x\] /.test(line),
+						indented
+					};
+				})
 			: []
 	);
 
@@ -58,25 +65,11 @@
 		};
 	}
 
-	function toggleChecklistItem(item: ChecklistItem) {
-		const lines = note.content.split('\n');
-		for (let i = 0; i < lines.length; i++) {
-			const line = lines[i];
-			const text = line.replace(/^- \[[ x]\] /, '');
-			if (text === item.text && line.startsWith(item.checked ? '- [x] ' : '- [ ] ')) {
-				lines[i] = item.checked
-					? `- [ ] ${text}`
-					: `- [x] ${text}`;
-				break;
-			}
-		}
-		updateNote(note.id, { content: lines.join('\n') });
-	}
 </script>
 
 <!-- svelte-ignore a11y_no_noninteractive_element_to_interactive_role -->
 <article
-	class="group relative cursor-pointer rounded-sm border border-[var(--border-subtle)] p-4 outline-none transition-all hover:border-[var(--primary)] shadow-[var(--card-shadow)] hover:shadow-[var(--card-shadow-hover)] {fullHeight ? 'h-full' : ''}"
+	class="group relative cursor-pointer rounded-sm border border-[var(--border-subtle)] p-4 outline-none transition-all hover:border-[var(--primary)] shadow-[var(--card-shadow)] hover:shadow-[var(--card-shadow-hover)] max-h-[17rem] overflow-hidden {fullHeight ? 'h-full' : ''}"
 	style={cardStyle}
 	onclick={() => onEdit(note)}
 	onkeydown={(e) => e.key === 'Enter' && onEdit(note)}
@@ -115,17 +108,18 @@
 
 	<!-- Status indicators (top-right) -->
 	<div class="absolute top-1.5 right-1.5 flex items-center gap-0.5">
-		{#if note.isShared && note.collaborators}
-			<CollaboratorPopover
-				collaborators={note.collaborators}
-				ownerName={note.isOwner ? 'You' : undefined}
+		{#if note.shareToken || (note.isShared && note.collaborators)}
+			<SharingIndicator
+				shareToken={note.shareToken}
+				collaborators={note.collaborators ?? []}
+				isOwner={note.isOwner ?? true}
 			/>
 		{/if}
 		{#if note.pinned}
 			<button
 				onclick={stop(() => togglePin(note.id, note.pinned))}
 				class="rounded-sm p-1 text-[var(--primary)] hover:bg-[var(--border)]/10"
-				title="Unpin"
+				use:tooltip={"Unpin"}
 				data-testid="pin-indicator"
 			>
 				<Bookmark class="h-4 w-4 fill-[var(--primary)]" />
@@ -138,17 +132,21 @@
 	{/if}
 
 	{#if note.checklistMode && checklistItems.length > 0}
-		<ul class="space-y-2 mb-6" data-testid="note-checklist-preview">
+		<!-- svelte-ignore a11y_no_noninteractive_element_interactions -->
+		<ul class="space-y-2 mb-6" data-testid="note-checklist-preview"
+			onclick={(e) => { if ((e.target as HTMLElement).closest('a')) e.stopPropagation(); }}
+			onkeydown={(e) => { if ((e.target as HTMLElement).closest('a')) e.stopPropagation(); }}>
 			{#each sortedChecklistItems.slice(0, 8) as item}
-				<li class="flex items-start gap-2 text-sm {item.checked ? 'text-[var(--text-muted)] line-through' : 'text-[var(--text)]'}">
+				<li class="flex items-start gap-2 text-sm {item.indented ? 'pl-4 ' : ''}{item.checked ? 'text-[var(--text-muted)] line-through' : 'text-[var(--text)]'}"
+					data-testid={item.indented ? 'card-checklist-child' : undefined}>
 					<input
 						type="checkbox"
 						checked={item.checked}
-						onclick={(e) => { e.stopPropagation(); toggleChecklistItem(item); }}
-						class="mt-0.5 h-3.5 w-3.5 shrink-0 rounded border-[var(--border-subtle)] text-[var(--primary)] cursor-pointer"
+						disabled
+						class="mt-0.5 h-3.5 w-3.5 shrink-0 rounded border-[var(--border-subtle)] text-[var(--primary)]"
 						data-testid="card-checklist-checkbox"
 					/>
-					<span class="break-words min-w-0">{item.text}</span>
+					<span class="break-words min-w-0">{@html linkifyText(item.text)}</span>
 				</li>
 			{/each}
 			{#if checklistItems.length > 8}
@@ -167,7 +165,7 @@
 			<button
 				onclick={stop(() => restoreNote(note.id))}
 				class="rounded-sm p-1.5 hover:bg-[var(--border)]/10"
-				title="Restore"
+				use:tooltip={"Restore"}
 				data-testid="restore-btn"
 			>
 				<Undo2 class="h-4 w-4" />
@@ -175,7 +173,7 @@
 			<button
 				onclick={stop(() => deleteNote(note.id))}
 				class="rounded-sm p-1.5 hover:bg-[var(--border)]/10"
-				title="Delete forever"
+				use:tooltip={"Delete forever"}
 				data-testid="delete-forever-btn"
 			>
 				<Trash2 class="h-4 w-4 text-[var(--destructive)]" />
@@ -185,7 +183,7 @@
 				<button
 					onclick={stop(() => togglePin(note.id, note.pinned))}
 					class="rounded-sm p-1.5 hover:bg-[var(--border)]/10"
-					title="Pin"
+					use:tooltip={"Pin"}
 					data-testid="pin-btn"
 				>
 					<Bookmark class="h-4 w-4" />
@@ -195,7 +193,7 @@
 				<button
 					onclick={stop(() => unarchiveNote(note.id))}
 					class="rounded-sm p-1.5 hover:bg-[var(--border)]/10"
-					title="Unarchive"
+					use:tooltip={"Unarchive"}
 					data-testid="unarchive-btn"
 				>
 					<ArchiveRestore class="h-4 w-4" />
@@ -204,7 +202,7 @@
 				<button
 					onclick={stop(() => archiveNote(note.id))}
 					class="rounded-sm p-1.5 hover:bg-[var(--border)]/10"
-					title="Archive"
+					use:tooltip={"Archive"}
 					data-testid="archive-btn"
 				>
 					<Archive class="h-4 w-4" />
@@ -214,7 +212,7 @@
 				<button
 					onclick={stop(() => leaveNote(note.id))}
 					class="rounded-sm p-1.5 hover:bg-[var(--border)]/10"
-					title="Leave note"
+					use:tooltip={"Leave note"}
 					data-testid="leave-btn"
 				>
 					<UserMinus class="h-4 w-4" />
@@ -223,7 +221,7 @@
 				<button
 					onclick={stop(() => trashNote(note.id))}
 					class="rounded-sm p-1.5 hover:bg-[var(--border)]/10"
-					title="Delete"
+					use:tooltip={"Trash"}
 					data-testid="trash-btn"
 				>
 					<Trash2 class="h-4 w-4" />

src/lib/components/NoteEditor.svelte

@@ -1,13 +1,16 @@
 <script lang="ts">
+	import { onMount } from 'svelte';
 	import ColorPicker from './ColorPicker.svelte';
 	import Checklist from './Checklist.svelte';
 	import FormattingToolbar from './FormattingToolbar.svelte';
 	import TiptapEditor from './TiptapEditor.svelte';
 	import ImageUpload from './ImageUpload.svelte';
 	import ShareDialog from './ShareDialog.svelte';
-	import { updateNote, createNote } from '$lib/stores/notes.js';
+	import NoteHistory from './NoteHistory.svelte';
+	import { updateNote, createNote, trashNote, archiveNote } from '$lib/stores/notes.js';
 	import { notes } from '$lib/stores/notes.js';
-	import { NOTE_COLORS } from '$lib/utils/colors.js';
+	import { getNoteColor } from '$lib/utils/colors.js';
+	import { getIsDarkMode } from '$lib/utils/theme.svelte.js';
 	import { getPreferences } from '$lib/stores/preferences.svelte.js';
 	import type { Editor } from '@tiptap/core';
 	import type { Note, NoteColor, Attachment, Collaborator } from '$lib/types/index.js';
@@ -19,14 +22,23 @@
 	import FileText from 'lucide-svelte/icons/file-text';
 	import UserPlus from 'lucide-svelte/icons/user-plus';
 	import Users from 'lucide-svelte/icons/users';
+	import Globe from 'lucide-svelte/icons/globe';
+	import History from 'lucide-svelte/icons/history';
+	import EllipsisVertical from 'lucide-svelte/icons/ellipsis-vertical';
+	import Trash2 from 'lucide-svelte/icons/trash-2';
+	import ListX from 'lucide-svelte/icons/list-x';
+	import Archive from 'lucide-svelte/icons/archive';
+	import { parseChecklist, serializeChecklist } from '$lib/utils/checklist.js';
+	import { tooltip } from '$lib/utils/tooltip.js';
 
 	interface Props {
 		note: Note | null;
 		isNew?: boolean;
+		initialChecklistMode?: boolean;
 		onClose: () => void;
 	}
 
-	const { note, isNew = false, onClose }: Props = $props();
+	const { note, isNew = false, initialChecklistMode = false, onClose }: Props = $props();
 	const prefs = getPreferences();
 
 	// svelte-ignore state_referenced_locally
@@ -36,7 +48,7 @@
 	// svelte-ignore state_referenced_locally
 	let color = $state<NoteColor>(note?.color ?? prefs.defaultNoteColor);
 	// svelte-ignore state_referenced_locally
-	let checklistMode = $state(note?.checklistMode ?? false);
+	let checklistMode = $state(note?.checklistMode ?? initialChecklistMode);
 	let showColorPicker = $state(false);
 	let showImageUpload = $state(false);
 	// svelte-ignore state_referenced_locally
@@ -51,20 +63,149 @@
 	// svelte-ignore state_referenced_locally
 	let currentlyNew = $state(isNew);
 
+	// Auto-save: track last-saved state to detect real changes
+	let lastSavedTitle = note?.title ?? '';
+	let lastSavedContent = note?.content ?? '';
+	let lastSavedColor: NoteColor = note?.color ?? prefs.defaultNoteColor;
+	let lastSavedChecklistMode = note?.checklistMode ?? initialChecklistMode;
+	let isSaving = false;
+	let savingPromise: Promise<void> | null = null;
+	let autoSaveTimer: ReturnType<typeof setTimeout> | undefined;
+	// TiptapEditor fires onUpdate on init with round-tripped markdown that may differ
+	// from the original. Track whether auto-save should be active yet.
+	let autoSaveReady = isNew;
+
+	function hasUnsavedChanges(): boolean {
+		return (
+			title !== lastSavedTitle ||
+			content !== lastSavedContent ||
+			color !== lastSavedColor ||
+			checklistMode !== lastSavedChecklistMode
+		);
+	}
+
+	async function performSave() {
+		if (isSaving) return;
+		// Snapshot current fields to avoid races with user edits during await
+		const snap = { title, content, color, checklistMode };
+		if (!snap.title.trim() && !snap.content.trim()) return;
+		if (
+			snap.title === lastSavedTitle &&
+			snap.content === lastSavedContent &&
+			snap.color === lastSavedColor &&
+			snap.checklistMode === lastSavedChecklistMode
+		) return;
+
+		isSaving = true;
+		try {
+			if (currentlyNew) {
+				const created = await createNote(snap);
+				if (created) {
+					noteId = created.id;
+					currentlyNew = false;
+					lastSavedTitle = snap.title;
+					lastSavedContent = snap.content;
+					lastSavedColor = snap.color;
+					lastSavedChecklistMode = snap.checklistMode;
+				}
+			} else if (noteId) {
+				const updated = await updateNote(noteId, snap);
+				if (updated) {
+					lastSavedTitle = snap.title;
+					lastSavedContent = snap.content;
+					lastSavedColor = snap.color;
+					lastSavedChecklistMode = snap.checklistMode;
+				}
+			}
+		} finally {
+			isSaving = false;
+		}
+	}
+
+	// Debounced auto-save: triggers 2s after the user stops editing
+	$effect(() => {
+		const _t = title;
+		const _c = content;
+		const _col = color;
+		const _cm = checklistMode;
+
+		if (!autoSaveReady) {
+			// Absorb TiptapEditor's initial content normalization as the baseline
+			lastSavedContent = _c;
+			autoSaveReady = true;
+			return;
+		}
+
+		if (_t === lastSavedTitle && _c === lastSavedContent && _col === lastSavedColor && _cm === lastSavedChecklistMode) return;
+		if (!_t.trim() && !_c.trim()) return;
+
+		autoSaveTimer = setTimeout(() => {
+			savingPromise = performSave();
+		}, 2000);
+
+		return () => clearTimeout(autoSaveTimer);
+	});
+
+	// Safety net: save on tab close / navigation
+	$effect(() => {
+		function handleBeforeUnload() {
+			if (hasUnsavedChanges() && (title.trim() || content.trim())) {
+				performSave();
+			}
+		}
+		window.addEventListener('beforeunload', handleBeforeUnload);
+		return () => window.removeEventListener('beforeunload', handleBeforeUnload);
+	});
+
 	// svelte-ignore state_referenced_locally
 	let attachmentsList = $state<Attachment[]>(note?.attachments ?? []);
 
+	// Guard against mobile ghost clicks: on touch devices, a tap on the note card
+	// can produce a synthetic click that lands on editor buttons rendered at the same
+	// coordinates. Suppress pointer events on toolbar controls until mount completes.
+	let toolbarInteractive = $state(false);
+	onMount(() => {
+		const timer = setTimeout(() => { toolbarInteractive = true; }, 150);
+		return () => clearTimeout(timer);
+	});
+
 	let showShareDialog = $state(false);
+	let showHistory = $state(false);
+	let showOverflowMenu = $state(false);
+	let overflowBtnEl: HTMLButtonElement | undefined = $state();
+	let overflowMenuEl: HTMLDivElement | undefined = $state();
+
+	// Close overflow menu when clicking outside
+	$effect(() => {
+		if (!showOverflowMenu) return;
+		function handleClickOutside(e: MouseEvent) {
+			const target = e.target as Node;
+			if (overflowBtnEl?.contains(target) || overflowMenuEl?.contains(target)) return;
+			showOverflowMenu = false;
+		}
+		// Use setTimeout to avoid the current click from closing the menu
+		const timer = setTimeout(() => document.addEventListener('click', handleClickOutside), 0);
+		return () => {
+			clearTimeout(timer);
+			document.removeEventListener('click', handleClickOutside);
+		};
+	});
+
+	const hasDoneItems = $derived(
+		checklistMode && content.includes('[x]')
+	);
 	// svelte-ignore state_referenced_locally
 	let collaboratorsList = $state<Collaborator[]>(note?.collaborators ?? []);
+	// svelte-ignore state_referenced_locally
+	let currentShareToken = $state<string | undefined>(note?.shareToken);
 	const isOwner = $derived(note?.isOwner !== false);
 	const isShared = $derived(collaboratorsList.length > 0);
+	const hasPublicLink = $derived(!!currentShareToken);
 	// Use displayName from first user or 'You' for owner
 	const ownerName = $derived(isOwner ? 'You' : 'Owner');
 
 	function handleCollaboratorsUpdate(updated: Collaborator[]) {
 		collaboratorsList = updated;
-		// Update the note in the store
 		if (noteId) {
 			notes.update((list) =>
 				list.map((n) =>
@@ -76,6 +217,19 @@
 		}
 	}
 
+	function handleShareUpdate(token: string | null) {
+		currentShareToken = token ?? undefined;
+		if (noteId) {
+			notes.update((list) =>
+				list.map((n) =>
+					n.id === noteId
+						? { ...n, shareToken: token ?? undefined }
+						: n
+				)
+			);
+		}
+	}
+
 	async function toggleShareDialog() {
 		if (currentlyNew) {
 			const id = await autoSave();
@@ -84,6 +238,37 @@
 		showShareDialog = !showShareDialog;
 	}
 
+	async function toggleHistory() {
+		if (currentlyNew) {
+			const id = await autoSave();
+			if (!id) return;
+		}
+		showHistory = !showHistory;
+	}
+
+	async function handleHistoryRestored() {
+		if (!noteId) return;
+		// Reload the note content from the server after a restore
+		try {
+			const res = await fetch(`/api/notes/${noteId}`);
+			if (res.ok) {
+				const updated = await res.json();
+				title = updated.title ?? '';
+				content = updated.content ?? '';
+				color = updated.color ?? 'default';
+				checklistMode = updated.checklistMode ?? false;
+				// Bump editor tick to force TiptapEditor to re-render
+				editorTick++;
+				// Update the store too
+				notes.update((list) =>
+					list.map((n) => (n.id === noteId ? { ...n, ...updated } : n))
+				);
+			}
+		} catch {
+			// failed silently
+		}
+	}
+
 	// Fetch attachments for existing notes if not pre-populated (e.g. loaded from IDB)
 	$effect(() => {
 		if (noteId && !currentlyNew && (!note?.attachments || note.attachments.length === 0)) {
@@ -97,7 +282,13 @@
 	});
 
 	function handleAttachmentUpload(attachment: Attachment) {
-		attachmentsList = [...attachmentsList, attachment];
+		const updated = [...attachmentsList, attachment];
+		attachmentsList = updated;
+		if (noteId) {
+			notes.update((list) =>
+				list.map((n) => (n.id === noteId ? { ...n, attachments: updated } : n))
+			);
+		}
 	}
 
 	async function handleToggleFeatured(attachmentId: string, featured: boolean) {
@@ -109,9 +300,14 @@
 				body: JSON.stringify({ featured })
 			});
 			if (res.ok) {
-				attachmentsList = attachmentsList.map((a) =>
+				const updated = attachmentsList.map((a) =>
 					a.id === attachmentId ? { ...a, featured } : a
 				);
+				attachmentsList = updated;
+				// Keep the notes store in sync so the card reflects featured state
+				notes.update((list) =>
+					list.map((n) => (n.id === noteId ? { ...n, attachments: updated } : n))
+				);
 			}
 		} catch (err) {
 			console.error('Failed to toggle featured:', err);
@@ -124,7 +320,11 @@
 			await fetch(`/api/notes/${noteId}/attachments?attachmentId=${attachmentId}`, {
 				method: 'DELETE'
 			});
-			attachmentsList = attachmentsList.filter((a) => a.id !== attachmentId);
+			const updated = attachmentsList.filter((a) => a.id !== attachmentId);
+			attachmentsList = updated;
+			notes.update((list) =>
+				list.map((n) => (n.id === noteId ? { ...n, attachments: updated } : n))
+			);
 		} catch (err) {
 			console.error('Failed to remove attachment:', err);
 		}
@@ -132,71 +332,55 @@
 
 	let bgStyle = $state('');
 	$effect(() => {
-		const colors = NOTE_COLORS[color];
-		bgStyle = `background-color: ${colors.bg}`;
+		bgStyle = `background-color: ${getNoteColor(color, getIsDarkMode())}`;
 	});
 
-	// Track whether mousedown started on the overlay (not inside the editor).
-	// Prevents closing when the user selects text inside the editor and
-	// releases the mouse outside — the click event fires on the overlay,
-	// but we only want to close if the press also started there.
-	let mousedownOnOverlay = false;
+	// Close on backdrop tap/click. On close, a transparent shield stays in the DOM
+	// for 400ms to absorb the browser's delayed synthetic click that would otherwise
+	// pass through to NoteCards underneath (ghost click).
+	let pointerdownOnOverlay = false;
+	let closing = $state(false);
 
-	// On mobile, the tap that opens the editor produces synthetic mouse events
-	// (mousedown → mouseup → click) at the original touch coordinates. If those
-	// coordinates land on the overlay backdrop, the editor would close instantly.
-	// Guard against this by ignoring mousedowns that arrive within the first
-	// animation frame after mount.
-	let overlayReady = false;
-	$effect(() => {
-		const id = requestAnimationFrame(() => {
-			overlayReady = true;
-		});
-		return () => {
-			overlayReady = false;
-			cancelAnimationFrame(id);
-		};
-	});
-
-	function handleOverlayMousedown(e: MouseEvent) {
-		if (!overlayReady) return;
-		mousedownOnOverlay = e.target === e.currentTarget;
+	function handleOverlayPointerdown(e: PointerEvent) {
+		pointerdownOnOverlay = e.target === e.currentTarget;
 	}
 
-	function handleOverlayClick() {
-		if (mousedownOnOverlay) saveAndClose();
-		mousedownOnOverlay = false;
+	function handleOverlayPointerup(e: PointerEvent) {
+		if (pointerdownOnOverlay && e.target === e.currentTarget) saveAndClose();
+		pointerdownOnOverlay = false;
+	}
+
+	function dismissOverlay() {
+		closing = true;
+		setTimeout(() => onClose(), 400);
 	}
 
 	async function saveAndClose() {
+		clearTimeout(autoSaveTimer);
+		// Wait for any in-flight auto-save to finish
+		if (savingPromise) await savingPromise;
+
 		if (!title.trim() && !content.trim()) {
-			onClose();
+			dismissOverlay();
 			return;
 		}
 
-		if (currentlyNew) {
-			await createNote({ title, content, color, checklistMode });
-		} else if (noteId) {
-			await updateNote(noteId, { title, content, color, checklistMode });
+		// Final save if auto-save hasn't caught up yet
+		if (hasUnsavedChanges()) {
+			await performSave();
 		}
-		onClose();
+		dismissOverlay();
 	}
 
 	/** Auto-save a new note without closing, returns the new note ID */
 	async function autoSave(): Promise<string | null> {
 		if (!currentlyNew) return noteId;
-		const created = await createNote({
-			title: title || 'Untitled',
-			content,
-			color,
-			checklistMode
-		});
-		if (created) {
-			noteId = created.id;
-			currentlyNew = false;
-			return created.id;
-		}
-		return null;
+		clearTimeout(autoSaveTimer);
+		if (savingPromise) await savingPromise;
+		// For feature-triggered saves (image upload, share), use 'Untitled' fallback
+		if (!title.trim()) title = 'Untitled';
+		await performSave();
+		return noteId;
 	}
 
 	async function toggleImageUpload() {
@@ -224,21 +408,49 @@
 			requestAnimationFrame(() => textareaEl?.focus());
 		}
 	}
+
+	async function handleArchive() {
+		showOverflowMenu = false;
+		if (noteId) {
+			await archiveNote(noteId);
+			dismissOverlay();
+		}
+	}
+
+	async function handleTrash() {
+		showOverflowMenu = false;
+		if (noteId) {
+			await trashNote(noteId);
+			dismissOverlay();
+		}
+	}
+
+	function deleteCheckedItems() {
+		const items = parseChecklist(content).filter((i) => !i.checked);
+		content = serializeChecklist(items);
+		showOverflowMenu = false;
+	}
+
+	function uncheckAllItems() {
+		const items = parseChecklist(content).map((i) => ({ ...i, checked: false }));
+		content = serializeChecklist(items);
+		showOverflowMenu = false;
+	}
 </script>
 
 <!-- svelte-ignore a11y_no_static_element_interactions -->
 <div
-	class="fixed inset-0 z-40 flex items-start justify-center overflow-y-auto bg-black/50 pt-20 pb-10 animate-[fade-in_150ms_ease-out]"
-	onmousedown={handleOverlayMousedown}
-	onclick={handleOverlayClick}
+	class="fixed inset-0 z-40 {closing ? '' : 'flex items-start justify-center overflow-y-auto bg-black/50 pt-20 pb-10 animate-[fade-in_150ms_ease-out]'}"
+	onpointerdown={handleOverlayPointerdown}
+	onpointerup={handleOverlayPointerup}
 	onkeydown={handleKeydown}
 	data-testid="note-editor-overlay"
 >
+	{#if !closing}
 	<!-- svelte-ignore a11y_no_static_element_interactions -->
 	<div
 		class="mx-4 flex w-full max-w-xl md:max-w-2xl flex-col overflow-hidden rounded-sm border border-[var(--border)] shadow-[var(--card-shadow)] animate-[pop-in_150ms_ease-out]"
 		style={bgStyle}
-		onclick={(e) => e.stopPropagation()}
 		onkeydown={(e) => { e.stopPropagation(); handleKeydown(e); }}
 		data-testid="note-editor"
 	>
@@ -300,18 +512,23 @@
 
 		<!-- Formatting toolbar -->
 		{#if !rawMarkdownMode && !checklistMode}
-			<FormattingToolbar editor={tiptapEditor} tick={editorTick} />
+			<div style={toolbarInteractive ? '' : 'pointer-events: none'}>
+				<FormattingToolbar editor={tiptapEditor} tick={editorTick} />
+			</div>
 		{/if}
 
 		<!-- Toolbar -->
-		<div class="flex items-center justify-between border-t border-[var(--border-subtle)] px-2 py-2">
+		<div
+			class="flex items-center justify-between border-t border-[var(--border-subtle)] px-2 py-2"
+			style={toolbarInteractive ? '' : 'pointer-events: none'}
+		>
 			<div class="flex items-center gap-1">
 				<!-- Color picker toggle -->
 				<div class="relative">
 					<button
 						onclick={() => (showColorPicker = !showColorPicker)}
 						class="rounded-sm p-2 hover:bg-[var(--border)]/10"
-						title="Background color"
+						use:tooltip={"Background color"}
 						data-testid="color-picker-toggle"
 					>
 						<Palette class="h-5 w-5 text-[var(--text-muted)]" />
@@ -323,64 +540,60 @@
 					{/if}
 				</div>
 
-				<!-- Checklist mode toggle -->
-				<button
-					onclick={() => (checklistMode = !checklistMode)}
-					class="rounded-sm p-2 hover:bg-[var(--border)]/10"
-					title={checklistMode ? 'Switch to text' : 'Checklist mode'}
-					data-testid="checklist-toggle"
-				>
-					{#if checklistMode}
-						<Type class="h-5 w-5" />
-					{:else}
-						<SquareCheck class="h-5 w-5" />
-					{/if}
-				</button>
-
 				<!-- Image attachment toggle -->
 				<button
 					onclick={toggleImageUpload}
 					class="rounded-sm p-2 hover:bg-[var(--border)]/10"
-					title="Image attachments"
+					use:tooltip={"Attachments"}
 					data-testid="image-toggle"
 				>
 					<ImageIcon class="h-5 w-5 {showImageUpload ? 'text-[var(--primary)]' : ''}" />
 				</button>
 
-				<!-- Raw markdown mode toggle -->
-				<button
-					onclick={toggleMarkdownMode}
-					class="rounded-sm p-2 hover:bg-[var(--border)]/10 disabled:opacity-30 disabled:cursor-not-allowed"
-					title={rawMarkdownMode ? 'Rich text mode' : 'Markdown mode'}
-					disabled={checklistMode}
-					data-testid="markdown-toggle"
-				>
-					{#if rawMarkdownMode}
-						<FileText class="h-5 w-5" />
-					{:else}
-						<FileCode class="h-5 w-5" />
-					{/if}
-				</button>
-
-				<!-- Share button (owner only for new shares, all for viewing) -->
+				<!-- Share button -->
 				{#if isOwner}
 					<button
 						onclick={toggleShareDialog}
 						class="rounded-sm p-2 hover:bg-[var(--border)]/10"
-						title="Share note"
+						use:tooltip={"Share"}
 						data-testid="share-toggle"
 					>
-						{#if isShared}
+						{#if hasPublicLink}
+							<Globe class="h-5 w-5 text-[var(--primary)]" />
+						{:else if isShared}
 							<Users class="h-5 w-5 text-[var(--primary)]" />
 						{:else}
 							<UserPlus class="h-5 w-5" />
 						{/if}
 					</button>
 				{:else if isShared}
-					<span class="flex items-center gap-1 rounded-sm p-2 text-[var(--text-muted)]" title="Shared note">
+					<span class="flex items-center gap-1 rounded-sm p-2 text-[var(--text-muted)]" use:tooltip={"Shared note"}>
 						<Users class="h-5 w-5" />
 					</span>
 				{/if}
+
+				<!-- Archive button (only for saved notes) -->
+				{#if !currentlyNew}
+					<button
+						onclick={handleArchive}
+						class="rounded-sm p-2 hover:bg-[var(--border)]/10"
+						use:tooltip={"Archive"}
+						data-testid="archive-note-btn"
+					>
+						<Archive class="h-5 w-5" />
+					</button>
+				{/if}
+
+				<!-- Overflow menu trigger -->
+				<button
+					bind:this={overflowBtnEl}
+					onclick={() => (showOverflowMenu = !showOverflowMenu)}
+					class="rounded-sm p-2 hover:bg-[var(--border)]/10"
+					use:tooltip={"More"}
+					data-testid="overflow-menu-btn"
+				>
+					<EllipsisVertical class="h-5 w-5" />
+				</button>
 			</div>
 
 			<button
@@ -392,6 +605,98 @@
 			</button>
 		</div>
 	</div>
+
+	<!-- Overflow menu dropdown (rendered outside the card to escape overflow-hidden) -->
+	{#if showOverflowMenu && overflowBtnEl}
+		{@const rect = overflowBtnEl.getBoundingClientRect()}
+		<div
+			bind:this={overflowMenuEl}
+			class="fixed z-50 w-max whitespace-nowrap rounded-sm border border-[var(--border-subtle)] bg-[var(--bg-surface)] py-1 shadow-[var(--card-shadow)]"
+			style="bottom: {window.innerHeight - rect.top + 4}px; right: {window.innerWidth - rect.right}px;"
+			data-testid="overflow-menu"
+		>
+			<!-- Checklist mode toggle -->
+			<button
+				onclick={() => { checklistMode = !checklistMode; showOverflowMenu = false; }}
+				class="flex w-full items-center gap-2 px-3 py-2 text-left text-sm text-[var(--text)] hover:bg-[var(--border)]/10"
+				data-testid="checklist-toggle"
+			>
+				{#if checklistMode}
+					<Type class="h-4 w-4" />
+					Switch to text
+				{:else}
+					<SquareCheck class="h-4 w-4" />
+					Checklist mode
+				{/if}
+			</button>
+
+			<!-- Markdown mode toggle (not available in checklist mode) -->
+			{#if !checklistMode}
+				<button
+					onclick={() => { toggleMarkdownMode(); showOverflowMenu = false; }}
+					class="flex w-full items-center gap-2 px-3 py-2 text-left text-sm text-[var(--text)] hover:bg-[var(--border)]/10"
+					data-testid="markdown-toggle"
+				>
+					{#if rawMarkdownMode}
+						<FileText class="h-4 w-4" />
+						Rich text mode
+					{:else}
+						<FileCode class="h-4 w-4" />
+						Markdown mode
+					{/if}
+				</button>
+			{/if}
+
+			<!-- History -->
+			{#if !currentlyNew}
+				<button
+					onclick={() => { toggleHistory(); showOverflowMenu = false; }}
+					class="flex w-full items-center gap-2 px-3 py-2 text-left text-sm text-[var(--text)] hover:bg-[var(--border)]/10"
+					data-testid="history-toggle"
+				>
+					<History class="h-4 w-4 {showHistory ? 'text-[var(--primary)]' : ''}" />
+					Version history
+				</button>
+			{/if}
+
+			<!-- Trash (only for saved notes) -->
+			{#if !currentlyNew}
+				<div class="my-1 border-t border-[var(--border-subtle)]"></div>
+				<button
+					onclick={handleTrash}
+					class="flex w-full items-center gap-2 px-3 py-2 text-left text-sm text-[var(--destructive)] hover:bg-[var(--border)]/10"
+					data-testid="trash-note-btn"
+				>
+					<Trash2 class="h-4 w-4" />
+					Move to trash
+				</button>
+			{/if}
+
+			<!-- Checklist-specific actions -->
+			{#if checklistMode}
+				<div class="my-1 border-t border-[var(--border-subtle)]"></div>
+				{#if hasDoneItems}
+					<button
+						onclick={deleteCheckedItems}
+						class="flex w-full items-center gap-2 px-3 py-2 text-left text-sm text-[var(--text)] hover:bg-[var(--border)]/10"
+						data-testid="delete-checked-btn"
+					>
+						<Trash2 class="h-4 w-4" />
+						Delete checked
+					</button>
+				{/if}
+				<button
+					onclick={uncheckAllItems}
+					class="flex w-full items-center gap-2 px-3 py-2 text-left text-sm text-[var(--text)] hover:bg-[var(--border)]/10"
+					data-testid="uncheck-all-btn"
+				>
+					<ListX class="h-4 w-4" />
+					Uncheck all
+				</button>
+			{/if}
+		</div>
+	{/if}
+	{/if}
 </div>
 
 {#if showShareDialog && noteId}
@@ -399,7 +704,17 @@
 		noteId={noteId}
 		collaborators={collaboratorsList}
 		{ownerName}
+		shareToken={currentShareToken}
 		onClose={() => (showShareDialog = false)}
 		onUpdate={handleCollaboratorsUpdate}
+		onShareUpdate={handleShareUpdate}
+	/>
+{/if}
+
+{#if showHistory && noteId}
+	<NoteHistory
+		noteId={noteId}
+		onClose={() => (showHistory = false)}
+		onRestored={handleHistoryRestored}
 	/>
 {/if}

src/lib/components/NoteHistory.svelte

@@ -0,0 +1,224 @@
+<script lang="ts">
+	import type { NoteVersionSummary, NoteVersion } from '$lib/types/index.js';
+	import X from 'lucide-svelte/icons/x';
+	import RotateCcw from 'lucide-svelte/icons/rotate-ccw';
+	import Clock from 'lucide-svelte/icons/clock';
+	import { showToast } from '$lib/stores/toast.js';
+
+	interface Props {
+		noteId: string;
+		onClose: () => void;
+		onRestored: () => void;
+	}
+
+	const { noteId, onClose, onRestored }: Props = $props();
+
+	let versions = $state<NoteVersionSummary[]>([]);
+	let selectedVersion = $state<NoteVersion | null>(null);
+	let isLoading = $state(true);
+	let isLoadingVersion = $state(false);
+	let isRestoring = $state(false);
+	let showConfirm = $state(false);
+
+	$effect(() => {
+		// Track noteId explicitly so this only re-runs when the note changes
+		noteId;
+		void loadVersions();
+	});
+
+	async function loadVersions() {
+		isLoading = true;
+		try {
+			const res = await fetch(`/api/notes/${noteId}/versions`);
+			if (res.ok) {
+				versions = await res.json();
+			}
+		} catch {
+			// failed silently
+		} finally {
+			isLoading = false;
+		}
+	}
+
+	async function selectVersion(versionId: string) {
+		isLoadingVersion = true;
+		selectedVersion = null;
+		try {
+			const res = await fetch(`/api/notes/${noteId}/versions/${versionId}`);
+			if (res.ok) {
+				selectedVersion = await res.json();
+			}
+		} catch {
+			// failed silently
+		} finally {
+			isLoadingVersion = false;
+		}
+	}
+
+	async function restoreVersion() {
+		if (!selectedVersion) return;
+		isRestoring = true;
+		try {
+			const res = await fetch(
+				`/api/notes/${noteId}/versions/${selectedVersion.id}/restore`,
+				{ method: 'POST' }
+			);
+			if (res.ok) {
+				showToast('Version restored successfully', 'success');
+				onRestored();
+				onClose();
+			} else {
+				showToast('Failed to restore version', 'error');
+			}
+		} catch {
+			showToast('Failed to restore version', 'error');
+		} finally {
+			isRestoring = false;
+			showConfirm = false;
+		}
+	}
+
+	function formatDate(date: Date | string): string {
+		const d = new Date(date);
+		const now = new Date();
+		const diffMs = now.getTime() - d.getTime();
+		const diffMins = Math.floor(diffMs / 60000);
+		const diffHours = Math.floor(diffMins / 60);
+		const diffDays = Math.floor(diffHours / 24);
+
+		if (diffMins < 1) return 'Just now';
+		if (diffMins < 60) return `${diffMins} minute${diffMins === 1 ? '' : 's'} ago`;
+		if (diffHours < 24) return `${diffHours} hour${diffHours === 1 ? '' : 's'} ago`;
+		if (diffDays < 7) return `${diffDays} day${diffDays === 1 ? '' : 's'} ago`;
+		return d.toLocaleDateString('en-US', { month: 'short', day: 'numeric', year: 'numeric' });
+	}
+</script>
+
+<!-- svelte-ignore a11y_no_static_element_interactions -->
+<div
+	class="fixed inset-0 z-50 flex items-start justify-center overflow-y-auto bg-black/50 pt-20 pb-10"
+	onkeydown={(e) => { if (e.key === 'Escape') onClose(); }}
+	onclick={(e) => { if (e.target === e.currentTarget) onClose(); }}
+	data-testid="history-overlay"
+>
+	<!-- svelte-ignore a11y_no_static_element_interactions -->
+	<div
+		class="mx-4 flex w-full max-w-2xl flex-col overflow-hidden rounded-sm border border-[var(--border)] bg-[var(--bg-surface)] shadow-[var(--card-shadow)]"
+		onclick={(e) => e.stopPropagation()}
+		onkeydown={(e) => e.stopPropagation()}
+		data-testid="history-panel"
+	>
+		<!-- Header -->
+		<div class="flex items-center justify-between border-b border-[var(--border-subtle)] px-4 py-3">
+			<div class="flex items-center gap-2">
+				<Clock class="h-4 w-4 text-[var(--text-muted)]" />
+				<h2 class="text-sm font-semibold text-[var(--text)]">Version History</h2>
+			</div>
+			<button
+				onclick={onClose}
+				class="rounded-sm p-1 hover:bg-[var(--border)]/10"
+				title="Close history"
+				data-testid="close-history-btn"
+			>
+				<X class="h-4 w-4 text-[var(--text-muted)]" />
+			</button>
+		</div>
+
+		<div class="flex min-h-0 max-h-[60vh] flex-1">
+			<!-- Version list -->
+			<div class="w-56 flex-none border-r border-[var(--border-subtle)] overflow-y-auto">
+				{#if isLoading}
+					<div class="flex items-center justify-center py-8 text-sm text-[var(--text-muted)]">
+						Loading…
+					</div>
+				{:else if versions.length === 0}
+					<div class="flex items-center justify-center py-8 text-sm text-[var(--text-muted)]">
+						No history yet
+					</div>
+				{:else}
+					<ul class="divide-y divide-[var(--border-subtle)]">
+						{#each versions as v (v.id)}
+							<li>
+								<button
+									class="w-full px-3 py-3 text-left hover:bg-[var(--border)]/10 transition-colors {selectedVersion?.id === v.id ? 'bg-[var(--primary)]/10 border-l-2 border-[var(--primary)]' : ''}"
+									onclick={() => selectVersion(v.id)}
+									data-testid="version-item"
+								>
+									<div class="flex items-center justify-between gap-1">
+										<span class="text-xs font-semibold text-[var(--primary)]">v{v.version}</span>
+									</div>
+									<div class="mt-0.5 text-xs text-[var(--text-muted)]">{formatDate(v.createdAt)}</div>
+									{#if v.title}
+										<div class="mt-1 truncate text-xs font-medium text-[var(--text)]">{v.title}</div>
+									{/if}
+									{#if v.contentPreview}
+										<div class="mt-0.5 line-clamp-2 text-xs text-[var(--text-muted)]">{v.contentPreview}</div>
+									{/if}
+								</button>
+							</li>
+						{/each}
+					</ul>
+				{/if}
+			</div>
+
+			<!-- Version preview -->
+			<div class="flex min-w-0 flex-1 flex-col">
+				{#if isLoadingVersion}
+					<div class="flex items-center justify-center py-8 text-sm text-[var(--text-muted)]">
+						Loading…
+					</div>
+				{:else if selectedVersion}
+					<div class="flex flex-1 flex-col overflow-y-auto">
+						<div class="flex-1 overflow-y-auto px-4 py-3">
+							{#if selectedVersion.title}
+								<h3 class="mb-2 text-base font-semibold text-[var(--text)]">{selectedVersion.title}</h3>
+							{/if}
+							<pre class="whitespace-pre-wrap text-sm text-[var(--text)] font-[inherit]">{selectedVersion.content || '(empty)'}</pre>
+						</div>
+
+						<!-- Restore footer -->
+						<div class="border-t border-[var(--border-subtle)] px-4 py-3">
+							{#if showConfirm}
+								<div class="flex flex-col gap-2">
+									<p class="text-xs text-[var(--text-muted)]">
+										This will replace the current note. The current version will be saved as a snapshot.
+									</p>
+									<div class="flex gap-2">
+										<button
+											onclick={restoreVersion}
+											disabled={isRestoring}
+											class="flex items-center gap-1.5 rounded-sm border border-[var(--destructive)] bg-[var(--destructive)] px-3 py-1.5 text-xs font-medium text-white hover:opacity-90 disabled:opacity-50"
+											data-testid="confirm-restore-btn"
+										>
+											<RotateCcw class="h-3.5 w-3.5" />
+											{isRestoring ? 'Restoring…' : 'Confirm Restore'}
+										</button>
+										<button
+											onclick={() => (showConfirm = false)}
+											class="rounded-sm border border-[var(--border-subtle)] px-3 py-1.5 text-xs font-medium text-[var(--text)] hover:bg-[var(--border)]/10"
+										>
+											Cancel
+										</button>
+									</div>
+								</div>
+							{:else}
+								<button
+									onclick={() => (showConfirm = true)}
+									class="flex items-center gap-1.5 rounded-sm border border-[var(--border-subtle)] px-3 py-1.5 text-xs font-medium text-[var(--text)] hover:border-[var(--primary)] hover:text-[var(--primary)] transition-colors"
+									data-testid="restore-btn"
+								>
+									<RotateCcw class="h-3.5 w-3.5" />
+									Restore this version
+								</button>
+							{/if}
+						</div>
+					</div>
+				{:else}
+					<div class="flex items-center justify-center py-8 text-sm text-[var(--text-muted)]">
+						Select a version to preview
+					</div>
+				{/if}
+			</div>
+		</div>
+	</div>
+</div>

src/lib/components/NotesView.svelte

@@ -6,6 +6,8 @@
 	import { onMount } from 'svelte';
 	import type { Note, NoteFilter } from '$lib/types/index.js';
 	import Plus from 'lucide-svelte/icons/plus';
+	import SquareCheck from 'lucide-svelte/icons/square-check';
+	import { tooltip } from '$lib/utils/tooltip.js';
 
 	interface Props {
 		filter: NoteFilter;
@@ -16,6 +18,7 @@
 
 	let editingNote: Note | null = $state(null);
 	let showNewNote = $state(false);
+	let newNoteChecklist = $state(false);
 
 	// Sync store with route props and reload notes when filter changes
 	$effect(() => {
@@ -32,6 +35,7 @@
 	function closeEditor() {
 		editingNote = null;
 		showNewNote = false;
+		newNoteChecklist = false;
 		history.replaceState(null, '', location.pathname);
 	}
 
@@ -55,14 +59,24 @@
 
 {#if filter === 'all' && !tag}
 	<div class="mx-auto mb-6 hidden max-w-xl md:block">
-		<button
-			onclick={() => (showNewNote = true)}
-			class="flex w-full items-center gap-3 rounded-sm border border-dashed border-[var(--border-subtle)] bg-[var(--bg-surface)] px-4 py-3 text-left text-sm text-[var(--text-muted)] transition-colors hover:border-[var(--primary)] hover:text-[var(--primary)]"
-			data-testid="new-note-btn"
-		>
-			<Plus class="h-4 w-4" />
-			Add a crumb...
-		</button>
+		<div class="flex cursor-pointer items-center gap-0 rounded-sm border border-dashed border-[var(--border-subtle)] bg-[var(--bg-surface)] transition-colors hover:border-[var(--primary)]">
+			<button
+				onclick={() => (showNewNote = true)}
+				class="flex flex-1 cursor-pointer items-center gap-3 px-4 py-3 text-left text-sm text-[var(--text-muted)] hover:text-[var(--primary)]"
+				data-testid="new-note-btn"
+			>
+				<Plus class="h-4 w-4" />
+				Add a crumb...
+			</button>
+			<button
+				onclick={() => { newNoteChecklist = true; showNewNote = true; }}
+				class="cursor-pointer rounded-sm p-3 text-[var(--text-muted)] hover:text-[var(--primary)]"
+				use:tooltip={"New checklist"}
+				data-testid="new-checklist-btn"
+			>
+				<SquareCheck class="h-4 w-4" />
+			</button>
+		</div>
 	</div>
 	<button
 		onclick={() => (showNewNote = true)}
@@ -119,7 +133,7 @@
 {/if}
 
 {#if showNewNote}
-	<NoteEditor note={null} isNew={true} onClose={closeEditor} />
+	<NoteEditor note={null} isNew={true} initialChecklistMode={newNoteChecklist} onClose={closeEditor} />
 {/if}
 
 {#if editingNote}

src/lib/components/ShareDialog.svelte

@@ -3,7 +3,12 @@
 	import X from 'lucide-svelte/icons/x';
 	import UserMinus from 'lucide-svelte/icons/user-minus';
 	import Search from 'lucide-svelte/icons/search';
+	import Globe from 'lucide-svelte/icons/globe';
+	import Link from 'lucide-svelte/icons/link';
+	import Copy from 'lucide-svelte/icons/copy';
+	import Check from 'lucide-svelte/icons/check';
 	import { showToast } from '$lib/stores/toast.js';
+	import { page } from '$app/state';
 
 	interface UserResult {
 		id: number;
@@ -15,17 +20,65 @@
 		noteId: string;
 		collaborators: Collaborator[];
 		ownerName: string;
+		shareToken?: string;
 		onClose: () => void;
 		onUpdate: (collaborators: Collaborator[]) => void;
+		onShareUpdate: (token: string | null) => void;
 	}
 
-	const { noteId, collaborators, ownerName, onClose, onUpdate }: Props = $props();
+	const { noteId, collaborators, ownerName, shareToken, onClose, onUpdate, onShareUpdate }: Props = $props();
 
+	let publicShareToken = $state(shareToken ?? null);
+	let copying = $state(false);
+	let togglingShare = $state(false);
 	let searchQuery = $state('');
 	let searchResults = $state<UserResult[]>([]);
 	let isSearching = $state(false);
 	let searchTimeout: ReturnType<typeof setTimeout> | undefined;
 
+	const shareUrl = $derived(publicShareToken ? `${page.url.origin}/s/${publicShareToken}` : null);
+
+	async function togglePublicShare() {
+		togglingShare = true;
+		try {
+			if (publicShareToken) {
+				const res = await fetch(`/api/notes/${noteId}/share`, { method: 'DELETE' });
+				if (!res.ok) {
+					showToast('Failed to remove share link', 'error');
+					return;
+				}
+				publicShareToken = null;
+				onShareUpdate(null);
+				showToast('Public link removed', 'success');
+			} else {
+				const res = await fetch(`/api/notes/${noteId}/share`, { method: 'POST' });
+				if (!res.ok) {
+					showToast('Failed to create share link', 'error');
+					return;
+				}
+				const data = await res.json();
+				publicShareToken = data.token;
+				onShareUpdate(data.token);
+				showToast('Public link created', 'success');
+			}
+		} catch {
+			showToast('Failed to update share link', 'error');
+		} finally {
+			togglingShare = false;
+		}
+	}
+
+	async function copyShareUrl() {
+		if (!shareUrl) return;
+		try {
+			await navigator.clipboard.writeText(shareUrl);
+			copying = true;
+			setTimeout(() => (copying = false), 2000);
+		} catch {
+			showToast('Failed to copy link', 'error');
+		}
+	}
+
 	function handleSearch(query: string) {
 		clearTimeout(searchTimeout);
 		if (!query.trim()) {
@@ -38,7 +91,6 @@
 				const res = await fetch(`/api/users/search?q=${encodeURIComponent(query)}`);
 				if (res.ok) {
 					const users: UserResult[] = await res.json();
-					// Filter out existing collaborators
 					const collabIds = new Set(collaborators.map((c) => c.userId));
 					searchResults = users.filter((u) => !collabIds.has(u.id));
 				}
@@ -123,6 +175,60 @@
 			</button>
 		</div>
 
+		<!-- Public link section -->
+		<div class="px-4 pt-3 pb-3" data-testid="public-link-section">
+			<div
+				class="rounded-sm border p-3 transition-colors {publicShareToken
+					? 'border-[var(--primary)] bg-[var(--primary)]/5'
+					: 'border-[var(--border-subtle)]'}"
+			>
+				<div class="flex items-center justify-between">
+					<div class="flex items-center gap-2">
+						<Globe class="h-4 w-4 {publicShareToken ? 'text-[var(--primary)]' : 'text-[var(--text-muted)]'}" />
+						<span class="text-sm font-medium text-[var(--text)]">Public link</span>
+					</div>
+					<button
+						onclick={togglePublicShare}
+						disabled={togglingShare}
+						class="relative h-5 w-9 rounded-sm transition-colors {publicShareToken
+							? 'bg-[var(--primary)]'
+							: 'bg-[var(--border-subtle)]'}"
+						title={publicShareToken ? 'Disable public link' : 'Enable public link'}
+						data-testid="public-share-toggle"
+					>
+						<span
+							class="absolute top-0.5 h-4 w-4 rounded-sm bg-[var(--bg-surface)] shadow-[1px_1px_0px_var(--border-subtle)] transition-all {publicShareToken
+								? 'left-[1.125rem]'
+								: 'left-0.5'}"
+						></span>
+					</button>
+				</div>
+
+				{#if publicShareToken && shareUrl}
+					<div class="mt-2 flex items-center gap-1" data-testid="share-url-container">
+						<div class="flex min-w-0 flex-1 items-center gap-1.5 rounded-sm border border-[var(--border-subtle)] bg-[var(--bg-base)] px-2 py-1.5">
+							<Link class="h-3 w-3 shrink-0 text-[var(--text-muted)]" />
+							<span class="truncate text-xs text-[var(--text-muted)]" data-testid="share-url-text">{shareUrl}</span>
+						</div>
+						<button
+							onclick={copyShareUrl}
+							class="shrink-0 rounded-sm border border-[var(--border-subtle)] p-1.5 hover:border-[var(--primary)] hover:bg-[var(--primary)]/5 transition-colors"
+							title="Copy link"
+							data-testid="copy-share-url-btn"
+						>
+							{#if copying}
+								<Check class="h-4 w-4 text-[var(--success-text)]" />
+							{:else}
+								<Copy class="h-4 w-4 text-[var(--text-muted)]" />
+							{/if}
+						</button>
+					</div>
+				{/if}
+			</div>
+		</div>
+
+		<div class="border-t border-[var(--border-subtle)]"></div>
+
 		<!-- Search input -->
 		<div class="relative px-4 pt-3">
 			<div class="relative">

src/lib/components/SharingIndicator.svelte

@@ -0,0 +1,95 @@
+<script lang="ts">
+	import type { Collaborator } from '$lib/types/index.js';
+	import Globe from 'lucide-svelte/icons/globe';
+	import Users from 'lucide-svelte/icons/users';
+
+	interface Props {
+		shareToken?: string;
+		collaborators: Collaborator[];
+		isOwner: boolean;
+	}
+
+	const { shareToken, collaborators, isOwner }: Props = $props();
+
+	let showPopover = $state(false);
+	let hoverTimeout: ReturnType<typeof setTimeout> | undefined;
+
+	const hasPublicLink = $derived(!!shareToken);
+	const hasCollaborators = $derived(collaborators.length > 0);
+
+	const tooltipLines = $derived.by(() => {
+		const lines: string[] = [];
+		if (hasPublicLink) lines.push('Shared publicly via link');
+		if (hasCollaborators) {
+			lines.push(`Shared with ${collaborators.length} collaborator${collaborators.length > 1 ? 's' : ''}`);
+		}
+		return lines;
+	});
+
+	function handleMouseEnter() {
+		hoverTimeout = setTimeout(() => {
+			showPopover = true;
+		}, 150);
+	}
+
+	function handleMouseLeave() {
+		clearTimeout(hoverTimeout);
+		showPopover = false;
+	}
+
+	function handleClick(e: Event) {
+		e.stopPropagation();
+		showPopover = !showPopover;
+	}
+</script>
+
+<!-- svelte-ignore a11y_no_static_element_interactions -->
+<div
+	class="relative inline-flex"
+	onmouseenter={handleMouseEnter}
+	onmouseleave={handleMouseLeave}
+>
+	<button
+		type="button"
+		class="rounded-sm p-1 {hasPublicLink ? 'text-[var(--primary)]' : 'text-[var(--text-muted)]'} hover:text-[var(--primary)]"
+		title={tooltipLines.join(', ')}
+		aria-label={tooltipLines.join(', ')}
+		onclick={handleClick}
+		data-testid="sharing-indicator"
+	>
+		{#if hasPublicLink}
+			<Globe class="h-4 w-4" />
+		{:else}
+			<Users class="h-4 w-4" />
+		{/if}
+	</button>
+
+	{#if showPopover}
+		<div
+			class="absolute right-0 top-full z-20 mt-1 min-w-[180px] rounded-sm border border-[var(--border-subtle)] bg-[var(--bg-surface)] p-2 shadow-[var(--card-shadow)] animate-[fade-in_150ms_ease-out]"
+			data-testid="sharing-popover"
+		>
+			{#if hasPublicLink}
+				<div class="mb-1 flex items-center gap-1.5">
+					<Globe class="h-3 w-3 text-[var(--primary)]" />
+					<span class="text-xs font-semibold text-[var(--primary)]">Public link active</span>
+				</div>
+			{/if}
+			{#if hasCollaborators}
+				<p class="mb-1 text-xs font-semibold text-[var(--text-muted)]">Shared with</p>
+				<ul class="space-y-0.5">
+					{#if isOwner}
+						<li class="text-xs text-[var(--text)]">
+							You <span class="text-[var(--text-muted)]">(Owner)</span>
+						</li>
+					{/if}
+					{#each collaborators as collab}
+						<li class="text-xs text-[var(--text)]">
+							{collab.displayName || collab.email}
+						</li>
+					{/each}
+				</ul>
+			{/if}
+		</div>
+	{/if}
+</div>

src/lib/server/auth.test.ts

@@ -3,7 +3,7 @@ import { createTestDb } from './db/test-helpers.js';
 import { users, sessions } from './db/schema.js';
 import { eq } from 'drizzle-orm';
 import * as argon2 from 'argon2';
-import { randomBytes } from 'crypto';
+import { randomBytes, randomUUID } from 'crypto';
 import type { BetterSQLite3Database } from 'drizzle-orm/better-sqlite3';
 import type * as schema from './db/schema.js';
 
@@ -16,16 +16,16 @@ beforeEach(() => {
 
 describe('Auth - Password Hashing', () => {
 	it('should hash and verify a password correctly', async () => {
-		const password = 'mysecurepassword';
+		const password = randomUUID();
 		const hash = await argon2.hash(password);
 
 		expect(hash).not.toBe(password);
 		expect(await argon2.verify(hash, password)).toBe(true);
-		expect(await argon2.verify(hash, 'wrongpassword')).toBe(false);
+		expect(await argon2.verify(hash, randomUUID())).toBe(false);
 	});
 
 	it('should produce different hashes for the same password', async () => {
-		const password = 'mysecurepassword';
+		const password = randomUUID();
 		const hash1 = await argon2.hash(password);
 		const hash2 = await argon2.hash(password);
 
@@ -37,7 +37,7 @@ describe('Auth - Password Hashing', () => {
 
 describe('Auth - User Setup', () => {
 	it('should create a user with hashed password', async () => {
-		const password = 'testpassword123';
+		const password = randomUUID();
 		const hash = await argon2.hash(password);
 
 		await db.insert(users).values({

src/lib/server/auth.ts

@@ -227,18 +227,53 @@ export function getUser(userId: number): User | null {
 }
 
 export async function deleteUser(userId: number): Promise<void> {
-	// Cascade: delete user's data in dependency order
-	sqlite.prepare('DELETE FROM sync_log WHERE user_id = ?').run(userId);
-	sqlite.prepare('DELETE FROM attachments WHERE user_id = ?').run(userId);
-	sqlite
-		.prepare(
-			'DELETE FROM note_tags WHERE note_id IN (SELECT id FROM notes WHERE user_id = ?)'
-		)
-		.run(userId);
-	sqlite.prepare('DELETE FROM notes WHERE user_id = ?').run(userId);
-	sqlite.prepare('DELETE FROM tags WHERE user_id = ?').run(userId);
-	sqlite.prepare('DELETE FROM sessions WHERE user_id = ?').run(userId);
-	db.delete(users).where(eq(users.id, userId)).run();
+	// Atomic cascade: all-or-nothing. Also clear rows from other users that
+	// reference the deleted user's notes (e.g. sync_log, note_user_state,
+	// note_collaborators) so foreign-key checks don't block the final delete.
+	const tx = sqlite.transaction((uid: number) => {
+		sqlite.prepare('DELETE FROM user_preferences WHERE user_id = ?').run(uid);
+		sqlite.prepare('DELETE FROM api_keys WHERE user_id = ?').run(uid);
+		sqlite
+			.prepare(
+				'DELETE FROM note_user_state WHERE user_id = ? OR note_id IN (SELECT id FROM notes WHERE user_id = ?)'
+			)
+			.run(uid, uid);
+		sqlite
+			.prepare(
+				'DELETE FROM note_collaborators WHERE user_id = ? OR added_by = ? OR note_id IN (SELECT id FROM notes WHERE user_id = ?)'
+			)
+			.run(uid, uid, uid);
+		sqlite
+			.prepare(
+				'DELETE FROM sync_log WHERE user_id = ? OR note_id IN (SELECT id FROM notes WHERE user_id = ?)'
+			)
+			.run(uid, uid);
+		sqlite
+			.prepare(
+				'DELETE FROM attachments WHERE user_id = ? OR note_id IN (SELECT id FROM notes WHERE user_id = ?)'
+			)
+			.run(uid, uid);
+		sqlite
+			.prepare(
+				'DELETE FROM shared_notes WHERE note_id IN (SELECT id FROM notes WHERE user_id = ?)'
+			)
+			.run(uid);
+		sqlite
+			.prepare(
+				'DELETE FROM note_tags WHERE note_id IN (SELECT id FROM notes WHERE user_id = ?)'
+			)
+			.run(uid);
+		sqlite
+			.prepare(
+				'DELETE FROM note_versions WHERE note_id IN (SELECT id FROM notes WHERE user_id = ?)'
+			)
+			.run(uid);
+		sqlite.prepare('DELETE FROM notes WHERE user_id = ?').run(uid);
+		sqlite.prepare('DELETE FROM tags WHERE user_id = ?').run(uid);
+		sqlite.prepare('DELETE FROM sessions WHERE user_id = ?').run(uid);
+		sqlite.prepare('DELETE FROM users WHERE id = ?').run(uid);
+	});
+	tx(userId);
 }
 
 export async function changePassword(

src/lib/server/db/index.ts

@@ -123,6 +123,25 @@ sqlite.exec(`
 		value TEXT NOT NULL,
 		updated_at INTEGER NOT NULL
 	);
+
+	CREATE TABLE IF NOT EXISTS shared_notes (
+		note_id TEXT PRIMARY KEY REFERENCES notes(id) ON DELETE CASCADE,
+		token TEXT NOT NULL UNIQUE,
+		created_at INTEGER NOT NULL,
+		expires_at INTEGER
+	);
+
+	CREATE TABLE IF NOT EXISTS note_versions (
+		id TEXT PRIMARY KEY,
+		note_id TEXT NOT NULL REFERENCES notes(id) ON DELETE CASCADE,
+		version INTEGER NOT NULL,
+		title TEXT NOT NULL DEFAULT '',
+		content TEXT NOT NULL DEFAULT '',
+		checklist_mode INTEGER NOT NULL DEFAULT 0,
+		color TEXT NOT NULL DEFAULT 'default',
+		created_at INTEGER NOT NULL,
+		UNIQUE(note_id, version)
+	);
 `);
 
 // Migration: detect old schema (no email column on users) and add columns
@@ -196,6 +215,8 @@ sqlite.exec(`
 	CREATE UNIQUE INDEX IF NOT EXISTS note_user_state_unique ON note_user_state(note_id, user_id);
 	CREATE UNIQUE INDEX IF NOT EXISTS user_preferences_user_key_unique ON user_preferences(user_id, key);
 
+	CREATE INDEX IF NOT EXISTS note_versions_note_id_idx ON note_versions(note_id);
+
 	CREATE TABLE IF NOT EXISTS api_keys (
 		id TEXT PRIMARY KEY,
 		user_id INTEGER NOT NULL REFERENCES users(id),

src/lib/server/db/schema.ts

@@ -189,3 +189,32 @@ export const userPreferences = sqliteTable(
 	},
 	(table) => [uniqueIndex('user_preferences_user_key_unique').on(table.userId, table.key)]
 );
+
+export const sharedNotes = sqliteTable('shared_notes', {
+	noteId: text('note_id')
+		.primaryKey()
+		.references(() => notes.id, { onDelete: 'cascade' }),
+	token: text('token').notNull().unique(),
+	createdAt: integer('created_at', { mode: 'timestamp' }).notNull(),
+	expiresAt: integer('expires_at', { mode: 'timestamp' })
+});
+
+export const noteVersions = sqliteTable(
+	'note_versions',
+	{
+		id: text('id').primaryKey(),
+		noteId: text('note_id')
+			.references(() => notes.id, { onDelete: 'cascade' })
+			.notNull(),
+		version: integer('version').notNull(),
+		title: text('title').notNull().default(''),
+		content: text('content').notNull().default(''),
+		checklistMode: integer('checklist_mode', { mode: 'boolean' }).notNull().default(false),
+		color: text('color').notNull().default('default'),
+		createdAt: integer('created_at', { mode: 'timestamp' }).notNull()
+	},
+	(table) => [
+		index('note_versions_note_id_idx').on(table.noteId),
+		uniqueIndex('note_versions_note_id_version_unique').on(table.noteId, table.version)
+	]
+);

src/lib/server/db/test-helpers.ts

@@ -136,6 +136,26 @@ export function createTestDb(options?: { seedUser?: boolean }) {
 			updated_at INTEGER NOT NULL
 		);
 		CREATE UNIQUE INDEX user_preferences_user_key_unique ON user_preferences(user_id, key);
+
+		CREATE TABLE shared_notes (
+			note_id TEXT PRIMARY KEY REFERENCES notes(id) ON DELETE CASCADE,
+			token TEXT NOT NULL UNIQUE,
+			created_at INTEGER NOT NULL,
+			expires_at INTEGER
+		);
+
+		CREATE TABLE note_versions (
+			id TEXT PRIMARY KEY,
+			note_id TEXT NOT NULL REFERENCES notes(id) ON DELETE CASCADE,
+			version INTEGER NOT NULL,
+			title TEXT NOT NULL DEFAULT '',
+			content TEXT NOT NULL DEFAULT '',
+			checklist_mode INTEGER NOT NULL DEFAULT 0,
+			color TEXT NOT NULL DEFAULT 'default',
+			created_at INTEGER NOT NULL,
+			UNIQUE(note_id, version)
+		);
+		CREATE INDEX note_versions_note_id_idx ON note_versions(note_id);
 	`);
 
 	const db = drizzle(sqlite, { schema });

src/lib/server/email.ts

@@ -0,0 +1,353 @@
+import nodemailer from 'nodemailer';
+import type { Transporter } from 'nodemailer';
+
+let transporter: Transporter | null = null;
+
+/**
+ * Check if SMTP email is configured via environment variables.
+ */
+export function isEmailConfigured(): boolean {
+	return !!process.env.SMTP_HOST;
+}
+
+/**
+ * Get or create the nodemailer transport (lazy singleton).
+ */
+function getTransporter(): Transporter {
+	if (!transporter) {
+		transporter = nodemailer.createTransport({
+			host: process.env.SMTP_HOST,
+			port: parseInt(process.env.SMTP_PORT || '587', 10),
+			secure: process.env.SMTP_PORT === '465',
+			auth:
+				process.env.SMTP_USER
+					? {
+							user: process.env.SMTP_USER,
+							pass: process.env.SMTP_PASS || ''
+						}
+					: undefined
+		});
+	}
+	return transporter;
+}
+
+/**
+ * Send an email. Best-effort: logs errors but does not throw.
+ */
+async function sendEmail(to: string, subject: string, html: string): Promise<void> {
+	try {
+		const transport = getTransporter();
+		await transport.sendMail({
+			from: process.env.SMTP_FROM || 'Crumbs <noreply@localhost>',
+			to,
+			subject,
+			html
+		});
+	} catch (err) {
+		console.error('[email] Failed to send:', err);
+	}
+}
+
+/**
+ * Send a share notification email to a collaborator.
+ */
+export async function sendShareNotification(
+	toEmail: string,
+	toName: string,
+	fromName: string,
+	noteTitle: string,
+	appUrl: string
+): Promise<void> {
+	if (!toEmail) return;
+
+	const subject = `${fromName} shared a note with you`;
+	const html = buildShareEmailHtml(toName, fromName, noteTitle, appUrl);
+	await sendEmail(toEmail, subject, html);
+}
+
+/**
+ * Send a welcome email to a newly created user.
+ */
+export async function sendWelcomeEmail(
+	toEmail: string,
+	toName: string,
+	appUrl: string
+): Promise<void> {
+	if (!toEmail) return;
+
+	const subject = 'Welcome to Crumbs';
+	const html = buildWelcomeEmailHtml(toName, appUrl);
+	await sendEmail(toEmail, subject, html);
+}
+
+/**
+ * Send a password reset notification to a user (triggered by admin reset).
+ */
+export async function sendPasswordResetEmail(
+	toEmail: string,
+	toName: string,
+	appUrl: string
+): Promise<void> {
+	if (!toEmail) return;
+
+	const subject = 'Your Crumbs password has been reset';
+	const html = buildPasswordResetEmailHtml(toName, appUrl);
+	await sendEmail(toEmail, subject, html);
+}
+
+/**
+ * Send an account deletion confirmation email.
+ */
+export async function sendAccountDeletedEmail(toEmail: string, toName: string): Promise<void> {
+	if (!toEmail) return;
+
+	const subject = 'Your Crumbs account has been deleted';
+	const html = buildAccountDeletedEmailHtml(toName);
+	await sendEmail(toEmail, subject, html);
+}
+
+/**
+ * Send a notification to the old email when the account email address changes.
+ */
+export async function sendEmailChangedEmail(
+	oldEmail: string,
+	toName: string,
+	newEmail: string
+): Promise<void> {
+	if (!oldEmail) return;
+
+	const subject = 'Your Crumbs email address has been changed';
+	const html = buildEmailChangedEmailHtml(toName, newEmail);
+	await sendEmail(oldEmail, subject, html);
+}
+
+/**
+ * Send a role change notification to a user.
+ */
+export async function sendRoleChangedEmail(
+	toEmail: string,
+	toName: string,
+	newRole: 'admin' | 'user',
+	appUrl: string
+): Promise<void> {
+	if (!toEmail) return;
+
+	const subject = 'Your Crumbs account role has been updated';
+	const html = buildRoleChangedEmailHtml(toName, newRole, appUrl);
+	await sendEmail(toEmail, subject, html);
+}
+
+/**
+ * Send a notification to a collaborator that they have been removed from a note.
+ */
+export async function sendCollaboratorRemovedEmail(
+	toEmail: string,
+	toName: string,
+	ownerName: string,
+	noteTitle: string,
+	appUrl: string
+): Promise<void> {
+	if (!toEmail) return;
+
+	const subject = `You've been removed from a shared note`;
+	const html = buildCollaboratorRemovedEmailHtml(toName, ownerName, noteTitle, appUrl);
+	await sendEmail(toEmail, subject, html);
+}
+
+/**
+ * Send a notification to collaborators that a shared note has been permanently deleted.
+ */
+export async function sendNotePermanentlyDeletedEmail(
+	toEmail: string,
+	toName: string,
+	noteTitle: string
+): Promise<void> {
+	if (!toEmail) return;
+
+	const subject = `A shared note has been deleted`;
+	const html = buildNotePermanentlyDeletedEmailHtml(toName, noteTitle);
+	await sendEmail(toEmail, subject, html);
+}
+
+/**
+ * Send a security alert to a user when their account is locked due to too many failed logins.
+ */
+export async function sendAccountLockedEmail(
+	toEmail: string,
+	toName: string,
+	retryAfterMinutes: number
+): Promise<void> {
+	if (!toEmail) return;
+
+	const subject = 'Crumbs account temporarily locked';
+	const html = buildAccountLockedEmailHtml(toName, retryAfterMinutes);
+	await sendEmail(toEmail, subject, html);
+}
+
+function buildShareEmailHtml(
+	toName: string,
+	fromName: string,
+	noteTitle: string,
+	appUrl: string
+): string {
+	const displayName = toName || 'there';
+	const escapedTitle = escapeHtml(noteTitle);
+	const escapedFrom = escapeHtml(fromName || 'Someone');
+	const content = `<h1 style="margin:0 0 24px;font-size:18px;color:#1a1a2e;font-weight:bold;">Note shared with you</h1>
+          <p style="margin:0 0 16px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            Hey ${escapeHtml(displayName)},
+          </p>
+          <p style="margin:0 0 24px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            <strong>${escapedFrom}</strong> shared a note with you: <strong>&ldquo;${escapedTitle}&rdquo;</strong>
+          </p>
+          ${buildOpenButton(appUrl)}`;
+	return buildEmailLayout(content, 'You&rsquo;re receiving this because someone shared a note with you on Crumbs.');
+}
+
+function buildEmailLayout(content: string, footer: string): string {
+	return `<!DOCTYPE html>
+<html>
+<head><meta charset="utf-8"></head>
+<body style="margin:0;padding:0;background-color:#f0e6d3;font-family:'JetBrains Mono',monospace;">
+  <table width="100%" cellpadding="0" cellspacing="0" style="background-color:#f0e6d3;padding:40px 20px;">
+    <tr><td align="center">
+      <table width="500" cellpadding="0" cellspacing="0" style="background-color:#faf5eb;border:1px solid #d4cabb;box-shadow:2px 2px 0px #d4cabb;">
+        <tr><td style="padding:32px;">
+          <p style="margin:0 0 8px;font-size:11px;color:#C8860A;text-transform:uppercase;letter-spacing:2px;">Crumbs</p>
+          ${content}
+          <p style="margin:0;font-size:11px;color:#6b6272;line-height:1.5;">${footer}</p>
+        </td></tr>
+      </table>
+    </td></tr>
+  </table>
+</body>
+</html>`;
+}
+
+function buildOpenButton(appUrl: string, label = 'Open Crumbs'): string {
+	return `<table cellpadding="0" cellspacing="0" style="margin:0 0 24px;">
+            <tr><td style="background-color:#C8860A;box-shadow:2px 2px 0px #1a1a2e;">
+              <a href="${escapeHtml(appUrl)}" style="display:inline-block;padding:10px 24px;color:#faf5eb;font-size:13px;font-weight:bold;text-decoration:none;font-family:'JetBrains Mono',monospace;">${escapeHtml(label)}</a>
+            </td></tr>
+          </table>`;
+}
+
+function buildWelcomeEmailHtml(toName: string, appUrl: string): string {
+	const displayName = escapeHtml(toName || 'there');
+	const content = `<h1 style="margin:0 0 24px;font-size:18px;color:#1a1a2e;font-weight:bold;">Welcome to Crumbs</h1>
+          <p style="margin:0 0 16px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            Hey ${displayName},
+          </p>
+          <p style="margin:0 0 24px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            An admin has created an account for you on Crumbs. You can log in and start taking notes right away.
+          </p>
+          ${buildOpenButton(appUrl)}`;
+	return buildEmailLayout(content, 'You&rsquo;re receiving this because an admin created an account for you on Crumbs.');
+}
+
+function buildPasswordResetEmailHtml(toName: string, appUrl: string): string {
+	const displayName = escapeHtml(toName || 'there');
+	const content = `<h1 style="margin:0 0 24px;font-size:18px;color:#1a1a2e;font-weight:bold;">Password reset</h1>
+          <p style="margin:0 0 16px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            Hey ${displayName},
+          </p>
+          <p style="margin:0 0 24px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            An admin has reset your Crumbs password. Please log in and change it to something only you know.
+          </p>
+          ${buildOpenButton(appUrl)}`;
+	return buildEmailLayout(content, 'You&rsquo;re receiving this because an admin reset your password on Crumbs. If you didn&rsquo;t expect this, please contact your admin.');
+}
+
+function buildAccountDeletedEmailHtml(toName: string): string {
+	const displayName = escapeHtml(toName || 'there');
+	const content = `<h1 style="margin:0 0 24px;font-size:18px;color:#1a1a2e;font-weight:bold;">Account deleted</h1>
+          <p style="margin:0 0 16px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            Hey ${displayName},
+          </p>
+          <p style="margin:0 0 24px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            Your Crumbs account and all associated data have been permanently deleted.
+          </p>`;
+	return buildEmailLayout(content, 'You&rsquo;re receiving this as confirmation that your Crumbs account was deleted.');
+}
+
+function buildEmailChangedEmailHtml(toName: string, newEmail: string): string {
+	const displayName = escapeHtml(toName || 'there');
+	const content = `<h1 style="margin:0 0 24px;font-size:18px;color:#1a1a2e;font-weight:bold;">Email address changed</h1>
+          <p style="margin:0 0 16px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            Hey ${displayName},
+          </p>
+          <p style="margin:0 0 24px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            Your Crumbs account email address has been changed to <strong>${escapeHtml(newEmail)}</strong>. If you did not make this change, please contact your admin immediately.
+          </p>`;
+	return buildEmailLayout(content, 'You&rsquo;re receiving this security notice because your Crumbs account email was updated.');
+}
+
+function buildRoleChangedEmailHtml(toName: string, newRole: 'admin' | 'user', appUrl: string): string {
+	const displayName = escapeHtml(toName || 'there');
+	const roleLabel = newRole === 'admin' ? 'Admin' : 'User';
+	const detail = newRole === 'admin'
+		? 'You now have admin privileges, including the ability to manage users and settings.'
+		: 'Your account no longer has admin privileges.';
+	const content = `<h1 style="margin:0 0 24px;font-size:18px;color:#1a1a2e;font-weight:bold;">Role updated: ${roleLabel}</h1>
+          <p style="margin:0 0 16px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            Hey ${displayName},
+          </p>
+          <p style="margin:0 0 24px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            Your Crumbs account role has been updated to <strong>${escapeHtml(roleLabel)}</strong>. ${escapeHtml(detail)}
+          </p>
+          ${buildOpenButton(appUrl)}`;
+	return buildEmailLayout(content, 'You&rsquo;re receiving this because your account role was changed on Crumbs.');
+}
+
+function buildCollaboratorRemovedEmailHtml(
+	toName: string,
+	ownerName: string,
+	noteTitle: string,
+	appUrl: string
+): string {
+	const displayName = escapeHtml(toName || 'there');
+	const escapedOwner = escapeHtml(ownerName || 'Someone');
+	const escapedTitle = escapeHtml(noteTitle);
+	const content = `<h1 style="margin:0 0 24px;font-size:18px;color:#1a1a2e;font-weight:bold;">Removed from shared note</h1>
+          <p style="margin:0 0 16px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            Hey ${displayName},
+          </p>
+          <p style="margin:0 0 24px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            <strong>${escapedOwner}</strong> has removed you from the shared note <strong>&ldquo;${escapedTitle}&rdquo;</strong>. You no longer have access to this note.
+          </p>
+          ${buildOpenButton(appUrl)}`;
+	return buildEmailLayout(content, 'You&rsquo;re receiving this because you were removed from a shared note on Crumbs.');
+}
+
+function buildNotePermanentlyDeletedEmailHtml(toName: string, noteTitle: string): string {
+	const displayName = escapeHtml(toName || 'there');
+	const escapedTitle = escapeHtml(noteTitle);
+	const content = `<h1 style="margin:0 0 24px;font-size:18px;color:#1a1a2e;font-weight:bold;">Shared note deleted</h1>
+          <p style="margin:0 0 16px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            Hey ${displayName},
+          </p>
+          <p style="margin:0 0 24px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            The shared note <strong>&ldquo;${escapedTitle}&rdquo;</strong> has been permanently deleted by its owner. You no longer have access to it.
+          </p>`;
+	return buildEmailLayout(content, 'You&rsquo;re receiving this because a shared note you had access to was deleted on Crumbs.');
+}
+
+function buildAccountLockedEmailHtml(toName: string, retryAfterMinutes: number): string {
+	const displayName = escapeHtml(toName || 'there');
+	const content = `<h1 style="margin:0 0 24px;font-size:18px;color:#1a1a2e;font-weight:bold;">Account temporarily locked</h1>
+          <p style="margin:0 0 16px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            Hey ${displayName},
+          </p>
+          <p style="margin:0 0 24px;font-size:14px;color:#1a1a2e;line-height:1.6;">
+            Too many failed login attempts were made on your Crumbs account. For your security, login has been temporarily blocked for <strong>${retryAfterMinutes} minute${retryAfterMinutes === 1 ? '' : 's'}</strong>. If this wasn&rsquo;t you, please change your password once you regain access.
+          </p>`;
+	return buildEmailLayout(content, 'You&rsquo;re receiving this security alert because of repeated failed login attempts on your Crumbs account.');
+}
+
+function escapeHtml(str: string): string {
+	return str
+		.replace(/&/g, '&amp;')
+		.replace(/</g, '&lt;')
+		.replace(/>/g, '&gt;')
+		.replace(/"/g, '&quot;');
+}

src/lib/server/ip-rate-limit.test.ts

@@ -0,0 +1,46 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+
+// We need to re-import for each test to get a fresh module state
+let checkIpRateLimit: (ip: string) => boolean;
+
+beforeEach(async () => {
+	vi.resetModules();
+	const mod = await import('./ip-rate-limit.js');
+	checkIpRateLimit = mod.checkIpRateLimit;
+});
+
+describe('checkIpRateLimit', () => {
+	it('allows requests under the limit', () => {
+		for (let i = 0; i < 60; i++) {
+			expect(checkIpRateLimit('1.2.3.4')).toBe(true);
+		}
+	});
+
+	it('blocks requests over the limit', () => {
+		for (let i = 0; i < 60; i++) {
+			checkIpRateLimit('1.2.3.4');
+		}
+		expect(checkIpRateLimit('1.2.3.4')).toBe(false);
+	});
+
+	it('tracks different IPs independently', () => {
+		for (let i = 0; i < 60; i++) {
+			checkIpRateLimit('1.1.1.1');
+		}
+		expect(checkIpRateLimit('1.1.1.1')).toBe(false);
+		expect(checkIpRateLimit('2.2.2.2')).toBe(true);
+	});
+
+	it('resets after the window expires', () => {
+		vi.useFakeTimers();
+		for (let i = 0; i < 60; i++) {
+			checkIpRateLimit('1.2.3.4');
+		}
+		expect(checkIpRateLimit('1.2.3.4')).toBe(false);
+
+		// Advance past the 1-minute window
+		vi.advanceTimersByTime(61_000);
+		expect(checkIpRateLimit('1.2.3.4')).toBe(true);
+		vi.useRealTimers();
+	});
+});

src/lib/server/ip-rate-limit.ts

@@ -0,0 +1,30 @@
+const store = new Map<string, { count: number; windowStart: number }>();
+const WINDOW_MS = 60_000; // 1 minute
+const MAX_REQUESTS = 60;
+const MAX_ENTRIES = 10_000;
+let cleanupCounter = 0;
+
+export function checkIpRateLimit(ip: string): boolean {
+	const now = Date.now();
+	const entry = store.get(ip);
+	if (!entry || now - entry.windowStart > WINDOW_MS) {
+		store.set(ip, { count: 1, windowStart: now });
+		pruneIfNeeded(now);
+		return true;
+	}
+	entry.count++;
+	return entry.count <= MAX_REQUESTS;
+}
+
+function pruneIfNeeded(now: number) {
+	cleanupCounter++;
+	if (cleanupCounter < 100 || store.size < MAX_ENTRIES) {
+		return;
+	}
+	cleanupCounter = 0;
+	for (const [key, entry] of store) {
+		if (now - entry.windowStart > WINDOW_MS) {
+			store.delete(key);
+		}
+	}
+}

src/lib/server/notes-service.test.ts

@@ -1,6 +1,6 @@
 import { describe, it, expect, beforeEach } from 'vitest';
 import { createTestDb } from './db/test-helpers.js';
-import { notes, noteCollaborators, noteUserState, users } from './db/schema.js';
+import { notes, noteCollaborators, noteUserState, noteVersions, users } from './db/schema.js';
 import { eq, and } from 'drizzle-orm';
 import type { Db } from './db/index.js';
 import {
@@ -233,6 +233,31 @@ describe('updateNote', () => {
 		expect(updated!.version).toBe(2);
 	});
 
+	it('should create a snapshot when content changes', () => {
+		seedNote('n1', { title: 'Original', content: 'Hello', color: 'default', checklistMode: false });
+		updateNote(db, OWNER_ID, 'n1', { title: 'Changed' });
+
+		const snapshots = db.select().from(noteVersions).where(eq(noteVersions.noteId, 'n1')).all();
+		expect(snapshots).toHaveLength(1);
+	});
+
+	it('should not create a snapshot when no content field actually changed', () => {
+		seedNote('n1', { title: 'Same', content: 'Same', color: 'default', checklistMode: false });
+		// Send the same values — nothing actually changes
+		updateNote(db, OWNER_ID, 'n1', { title: 'Same', content: 'Same' });
+
+		const snapshots = db.select().from(noteVersions).where(eq(noteVersions.noteId, 'n1')).all();
+		expect(snapshots).toHaveLength(0);
+	});
+
+	it('should not create a snapshot when only non-content fields change (pinned, archived)', () => {
+		seedNote('n1', { title: 'Note', pinned: false });
+		updateNote(db, OWNER_ID, 'n1', { pinned: true });
+
+		const snapshots = db.select().from(noteVersions).where(eq(noteVersions.noteId, 'n1')).all();
+		expect(snapshots).toHaveLength(0);
+	});
+
 	it('should extract and sync tags on title/content change', () => {
 		seedNote('n1', { title: 'Original' });
 		const updated = updateNote(db, OWNER_ID, 'n1', { title: 'Now with #newtag' });

src/lib/server/notes-service.ts

@@ -1,12 +1,15 @@
 import type { Db } from './db/index.js';
-import { notes, noteTags, tags, noteCollaborators, noteUserState } from './db/schema.js';
-import { eq, and, desc, like, or, inArray, sql } from 'drizzle-orm';
+import { notes, noteTags, tags, noteCollaborators, noteUserState, noteVersions } from './db/schema.js';
+import { eq, and, desc, like, or, inArray, sql, lte } from 'drizzle-orm';
 import { v4 as uuidv4 } from 'uuid';
 import { extractTags } from '$lib/utils/tags.js';
 import { fetchTagsForNotes, syncNoteTags } from './tags.js';
 import { fetchAttachmentsForNotes } from './attachments.js';
 import { fetchCollaboratorsForNotes } from './collaborators.js';
+import { fetchSharesForNotes } from './shares-service.js';
 import { canAccessNote } from './api-utils.js';
+import { createSnapshot } from './versions-service.js';
+import { mergeContent } from '$lib/utils/content-merge.js';
 import type { NoteFilter } from '$lib/types/index.js';
 
 interface NoteRow {
@@ -31,6 +34,7 @@ function hydrateNotes(db: Db, noteRows: NoteRow[], userId: number) {
 	const tagMap = fetchTagsForNotes(db, noteIds);
 	const attachmentMap = fetchAttachmentsForNotes(db, noteIds);
 	const collabMap = fetchCollaboratorsForNotes(db, noteIds);
+	const shareMap = fetchSharesForNotes(db, noteIds);
 
 	return noteRows.map((note) => {
 		const collaborators = collabMap.get(note.id) ?? [];
@@ -42,7 +46,8 @@ function hydrateNotes(db: Db, noteRows: NoteRow[], userId: number) {
 			attachments: attachmentMap.get(note.id) ?? [],
 			collaborators,
 			isOwner,
-			isShared
+			isShared,
+			shareToken: shareMap.get(note.id) ?? undefined
 		};
 	});
 }
@@ -204,6 +209,7 @@ export interface UpdateNoteInput {
 	trashed?: boolean;
 	checklistMode?: boolean;
 	sortOrder?: number;
+	baseVersion?: number;
 }
 
 /** Per-user fields that go to noteUserState for collaborators */
@@ -231,7 +237,32 @@ export function updateNote(db: Db, userId: number, id: string, input: UpdateNote
 	let hasSharedUpdates = false;
 
 	if (input.title !== undefined) { sharedUpdates.title = input.title; hasSharedUpdates = true; }
-	if (input.content !== undefined) { sharedUpdates.content = input.content; hasSharedUpdates = true; }
+	if (input.content !== undefined) {
+		// 3-way merge to preserve concurrent edits from other users.
+		// Only attempt merge when there's a concurrent edit: the client's
+		// baseVersion is behind the current version, meaning someone else
+		// saved between the client's load and this save.
+		const hasConcurrentEdit = input.baseVersion !== undefined
+			&& input.baseVersion < existing.version;
+
+		if (hasConcurrentEdit && input.content !== existing.content) {
+			const baseSnapshot = db.select({ content: noteVersions.content })
+				.from(noteVersions)
+				.where(and(eq(noteVersions.noteId, id), lte(noteVersions.version, input.baseVersion!)))
+				.orderBy(desc(noteVersions.version))
+				.limit(1)
+				.get();
+
+			if (baseSnapshot && baseSnapshot.content !== existing.content) {
+				sharedUpdates.content = mergeContent(baseSnapshot.content, input.content, existing.content);
+			} else {
+				sharedUpdates.content = input.content;
+			}
+		} else {
+			sharedUpdates.content = input.content;
+		}
+		hasSharedUpdates = true;
+	}
 	if (input.color !== undefined) { sharedUpdates.color = input.color; hasSharedUpdates = true; }
 	if (input.checklistMode !== undefined) { sharedUpdates.checklistMode = input.checklistMode; hasSharedUpdates = true; }
 
@@ -293,6 +324,23 @@ export function updateNote(db: Db, userId: number, id: string, input: UpdateNote
 		}
 	}
 
+	// Create a version snapshot only when at least one content field actually changed
+	const hasActualContentChange =
+		(input.title !== undefined && input.title !== existing.title) ||
+		(input.content !== undefined && input.content !== existing.content) ||
+		(input.color !== undefined && input.color !== existing.color) ||
+		(input.checklistMode !== undefined && input.checklistMode !== existing.checklistMode);
+
+	if (hasActualContentChange) {
+		createSnapshot(db, id, {
+			version: existing.version,
+			title: existing.title,
+			content: existing.content,
+			checklistMode: existing.checklistMode,
+			color: existing.color
+		});
+	}
+
 	return getNote(db, userId, id);
 }
 

src/lib/server/shares-service.test.ts

@@ -0,0 +1,167 @@
+import { describe, it, expect, beforeEach } from 'vitest';
+import { createTestDb } from './db/test-helpers.js';
+import { notes, users, attachments } from './db/schema.js';
+import type { Db } from './db/index.js';
+import {
+	fetchSharesForNotes,
+	createShare,
+	revokeShare,
+	getShareByNoteId,
+	getSharedNote
+} from './shares-service.js';
+
+let db: Db;
+
+const OWNER_ID = 1;
+
+function seedUsers() {
+	db.insert(users)
+		.values([
+			{
+				email: 'owner@test.com',
+				displayName: 'Owner',
+				role: 'admin',
+				authProvider: 'password',
+				createdAt: new Date()
+			}
+		])
+		.run();
+}
+
+function seedNote(
+	id: string,
+	overrides: Partial<typeof notes.$inferInsert> = {}
+) {
+	const now = new Date();
+	db.insert(notes)
+		.values({
+			id,
+			userId: OWNER_ID,
+			title: 'Test Note',
+			content: 'Test content',
+			createdAt: now,
+			updatedAt: now,
+			...overrides
+		})
+		.run();
+	return id;
+}
+
+beforeEach(() => {
+	const result = createTestDb();
+	db = result.db;
+	seedUsers();
+});
+
+describe('createShare', () => {
+	it('creates a share and returns a token', () => {
+		seedNote('note-1');
+		const { token } = createShare(db, 'note-1', OWNER_ID);
+		expect(token).toBeDefined();
+		expect(token.length).toBe(21);
+	});
+
+	it('returns the same token on duplicate creation (idempotent)', () => {
+		seedNote('note-1');
+		const first = createShare(db, 'note-1', OWNER_ID);
+		const second = createShare(db, 'note-1', OWNER_ID);
+		expect(first.token).toBe(second.token);
+	});
+
+	it('throws 404 for non-existent note', () => {
+		expect(() => createShare(db, 'nonexistent', OWNER_ID)).toThrow();
+	});
+});
+
+describe('revokeShare', () => {
+	it('removes the share token', () => {
+		seedNote('note-1');
+		createShare(db, 'note-1', OWNER_ID);
+		revokeShare(db, 'note-1', OWNER_ID);
+		const share = getShareByNoteId(db, 'note-1');
+		expect(share).toBeNull();
+	});
+});
+
+describe('getShareByNoteId', () => {
+	it('returns null when no share exists', () => {
+		seedNote('note-1');
+		expect(getShareByNoteId(db, 'note-1')).toBeNull();
+	});
+
+	it('returns share when one exists', () => {
+		seedNote('note-1');
+		const { token } = createShare(db, 'note-1', OWNER_ID);
+		const share = getShareByNoteId(db, 'note-1');
+		expect(share).not.toBeNull();
+		expect(share!.token).toBe(token);
+	});
+});
+
+describe('getSharedNote', () => {
+	it('returns note data for valid token', () => {
+		seedNote('note-1', { title: 'Shared Title', content: 'Shared content' });
+		const { token } = createShare(db, 'note-1', OWNER_ID);
+
+		const data = getSharedNote(db, token);
+		expect(data).not.toBeNull();
+		expect(data!.title).toBe('Shared Title');
+		expect(data!.content).toBe('Shared content');
+	});
+
+	it('returns null for trashed note', () => {
+		seedNote('note-1', { trashed: true });
+		const { token } = createShare(db, 'note-1', OWNER_ID);
+
+		expect(getSharedNote(db, token)).toBeNull();
+	});
+
+	it('returns null for invalid token', () => {
+		expect(getSharedNote(db, 'invalid-token')).toBeNull();
+	});
+
+	it('includes attachments', () => {
+		seedNote('note-1');
+		db.insert(attachments)
+			.values({
+				id: 'att-1',
+				userId: OWNER_ID,
+				noteId: 'note-1',
+				filename: 'image.png',
+				mimeType: 'image/png',
+				size: 1024,
+				path: '/data/attachments/att-1.png',
+				createdAt: new Date()
+			})
+			.run();
+		const { token } = createShare(db, 'note-1', OWNER_ID);
+
+		const data = getSharedNote(db, token);
+		expect(data!.attachments).toHaveLength(1);
+		expect(data!.attachments[0].filename).toBe('image.png');
+		// Verify server paths are not exposed
+		expect(data!.attachments[0]).not.toHaveProperty('path');
+		expect(data!.attachments[0]).not.toHaveProperty('thumbnailPath');
+	});
+});
+
+describe('fetchSharesForNotes', () => {
+	it('returns empty map for no notes', () => {
+		const result = fetchSharesForNotes(db, []);
+		expect(result.size).toBe(0);
+	});
+
+	it('returns tokens for shared notes', () => {
+		seedNote('note-1');
+		seedNote('note-2');
+		seedNote('note-3');
+		const { token: token1 } = createShare(db, 'note-1', OWNER_ID);
+		const { token: token2 } = createShare(db, 'note-2', OWNER_ID);
+
+		const result = fetchSharesForNotes(db, ['note-1', 'note-2', 'note-3']);
+		expect(result.size).toBe(2);
+		expect(result.get('note-1')).toBe(token1);
+		expect(result.get('note-2')).toBe(token2);
+		expect(result.get('note-3')).toBeUndefined();
+	});
+});

src/lib/server/shares-service.ts

@@ -0,0 +1,117 @@
+import type { Db } from './db/index.js';
+import { sharedNotes, notes, attachments } from './db/schema.js';
+import { eq, and, inArray } from 'drizzle-orm';
+import { nanoid } from 'nanoid';
+import { requireNoteOwnership } from './api-utils.js';
+import type { SharedNoteData } from '$lib/types/index.js';
+
+/**
+ * Batch fetch share tokens for multiple notes.
+ * Returns a Map of noteId → token.
+ */
+export function fetchSharesForNotes(db: Db, noteIds: string[]): Map<string, string> {
+	if (noteIds.length === 0) return new Map();
+
+	const rows = db
+		.select({ noteId: sharedNotes.noteId, token: sharedNotes.token })
+		.from(sharedNotes)
+		.where(inArray(sharedNotes.noteId, noteIds))
+		.all();
+
+	const map = new Map<string, string>();
+	for (const row of rows) {
+		map.set(row.noteId, row.token);
+	}
+	return map;
+}
+
+/**
+ * Create a public share link for a note. Idempotent — returns existing token if already shared.
+ */
+export function createShare(db: Db, noteId: string, userId: number): { token: string } {
+	requireNoteOwnership(db, noteId, userId);
+
+	const existing = db
+		.select({ token: sharedNotes.token })
+		.from(sharedNotes)
+		.where(eq(sharedNotes.noteId, noteId))
+		.get();
+
+	if (existing) return { token: existing.token };
+
+	const token = nanoid(21);
+	db.insert(sharedNotes)
+		.values({ noteId, token, createdAt: new Date() })
+		.run();
+
+	return { token };
+}
+
+/**
+ * Revoke a public share link for a note.
+ */
+export function revokeShare(db: Db, noteId: string, userId: number): void {
+	requireNoteOwnership(db, noteId, userId);
+
+	db.delete(sharedNotes)
+		.where(eq(sharedNotes.noteId, noteId))
+		.run();
+}
+
+/**
+ * Get share info for a specific note.
+ */
+export function getShareByNoteId(db: Db, noteId: string) {
+	return db
+		.select()
+		.from(sharedNotes)
+		.where(eq(sharedNotes.noteId, noteId))
+		.get() ?? null;
+}
+
+/**
+ * Get a shared note by its public token. Returns null if note is trashed or token is invalid.
+ */
+export function getSharedNote(db: Db, token: string): (SharedNoteData & { noteId: string }) | null {
+	const share = db
+		.select()
+		.from(sharedNotes)
+		.where(eq(sharedNotes.token, token))
+		.get();
+
+	if (!share) return null;
+
+	const note = db
+		.select()
+		.from(notes)
+		.where(and(eq(notes.id, share.noteId), eq(notes.trashed, false)))
+		.get();
+
+	if (!note) return null;
+
+	const noteAttachments = db
+		.select()
+		.from(attachments)
+		.where(eq(attachments.noteId, share.noteId))
+		.all();
+
+	const publicAttachments = noteAttachments.map((a) => ({
+		id: a.id,
+		filename: a.filename,
+		mimeType: a.mimeType,
+		size: a.size,
+		featured: a.featured,
+		createdAt: a.createdAt
+	}));
+
+	return {
+		noteId: note.id,
+		title: note.title,
+		content: note.content,
+		checklistMode: note.checklistMode,
+		color: note.color as SharedNoteData['color'],
+		attachments: publicAttachments,
+		createdAt: note.createdAt,
+		updatedAt: note.updatedAt
+	};
+}

src/lib/server/versions-service.test.ts

@@ -0,0 +1,207 @@
+import { describe, it, expect, beforeEach } from 'vitest';
+import { createTestDb } from './db/test-helpers.js';
+import { users, notes, noteVersions } from './db/schema.js';
+import { eq } from 'drizzle-orm';
+import type { Db } from './db/index.js';
+import { createSnapshot, listVersions, getVersion, snapshotCurrentNote } from './versions-service.js';
+
+let db: Db;
+
+const OWNER_ID = 1;
+const NOTE_ID = 'note-history-test';
+
+function seedUser() {
+	db.insert(users)
+		.values({
+			id: OWNER_ID,
+			email: 'owner@test.com',
+			displayName: 'Owner',
+			role: 'admin',
+			authProvider: 'password',
+			createdAt: new Date()
+		})
+		.run();
+}
+
+function seedNote(overrides: Partial<typeof notes.$inferInsert> = {}) {
+	const now = new Date();
+	db.insert(notes)
+		.values({
+			id: NOTE_ID,
+			userId: OWNER_ID,
+			title: 'Test Note',
+			content: 'Test content',
+			createdAt: now,
+			updatedAt: now,
+			version: 1,
+			...overrides
+		})
+		.run();
+}
+
+beforeEach(() => {
+	({ db } = createTestDb());
+	seedUser();
+});
+
+describe('createSnapshot', () => {
+	it('should store a snapshot for a note', () => {
+		seedNote();
+		createSnapshot(db, NOTE_ID, {
+			version: 1,
+			title: 'Test Note',
+			content: 'Test content',
+			checklistMode: false,
+			color: 'default'
+		});
+
+		const rows = db.select().from(noteVersions).where(eq(noteVersions.noteId, NOTE_ID)).all();
+		expect(rows).toHaveLength(1);
+		expect(rows[0].version).toBe(1);
+		expect(rows[0].title).toBe('Test Note');
+		expect(rows[0].content).toBe('Test content');
+		expect(rows[0].checklistMode).toBe(false);
+		expect(rows[0].color).toBe('default');
+	});
+
+	it('should not duplicate snapshots for the same version (onConflictDoNothing)', () => {
+		seedNote();
+		createSnapshot(db, NOTE_ID, { version: 1, title: 'A', content: '', checklistMode: false, color: 'default' });
+		createSnapshot(db, NOTE_ID, { version: 1, title: 'B', content: '', checklistMode: false, color: 'default' });
+
+		const rows = db.select().from(noteVersions).where(eq(noteVersions.noteId, NOTE_ID)).all();
+		expect(rows).toHaveLength(1);
+		expect(rows[0].title).toBe('A'); // first one wins
+	});
+
+	it('should prune to at most 50 snapshots', () => {
+		seedNote();
+		for (let i = 1; i <= 55; i++) {
+			createSnapshot(db, NOTE_ID, {
+				version: i,
+				title: `Version ${i}`,
+				content: '',
+				checklistMode: false,
+				color: 'default'
+			});
+		}
+
+		const rows = db.select().from(noteVersions).where(eq(noteVersions.noteId, NOTE_ID)).all();
+		expect(rows).toHaveLength(50);
+		// Oldest (v1–v5) should be pruned; newest (v6–v55) should remain
+		const versions = rows.map((r) => r.version);
+		expect(Math.min(...versions)).toBe(6);
+		expect(Math.max(...versions)).toBe(55);
+	});
+});
+
+describe('listVersions', () => {
+	it('should return an empty array when there are no versions', () => {
+		seedNote();
+		expect(listVersions(db, NOTE_ID)).toEqual([]);
+	});
+
+	it('should return summaries sorted newest first', () => {
+		seedNote();
+		createSnapshot(db, NOTE_ID, { version: 1, title: 'First', content: 'Hello world', checklistMode: false, color: 'default' });
+		createSnapshot(db, NOTE_ID, { version: 2, title: 'Second', content: 'Updated content here', checklistMode: false, color: 'mint' });
+
+		const summaries = listVersions(db, NOTE_ID);
+		expect(summaries).toHaveLength(2);
+		expect(summaries[0].version).toBe(2); // newest first
+		expect(summaries[1].version).toBe(1);
+	});
+
+	it('should truncate contentPreview to 80 characters', () => {
+		seedNote();
+		const longContent = 'a'.repeat(200);
+		createSnapshot(db, NOTE_ID, { version: 1, title: 'T', content: longContent, checklistMode: false, color: 'default' });
+
+		const summaries = listVersions(db, NOTE_ID);
+		expect(summaries[0].contentPreview).toHaveLength(80);
+	});
+
+	it('should include correct summary fields', () => {
+		seedNote();
+		createSnapshot(db, NOTE_ID, { version: 3, title: 'My Title', content: 'My content', checklistMode: false, color: 'coral' });
+
+		const summaries = listVersions(db, NOTE_ID);
+		expect(summaries[0]).toMatchObject({
+			noteId: NOTE_ID,
+			version: 3,
+			title: 'My Title',
+			contentPreview: 'My content'
+		});
+		expect(summaries[0].id).toBeTruthy();
+		expect(summaries[0].createdAt).toBeInstanceOf(Date);
+	});
+});
+
+describe('getVersion', () => {
+	it('should return null for a non-existent version', () => {
+		seedNote();
+		expect(getVersion(db, NOTE_ID, 'non-existent-id')).toBeNull();
+	});
+
+	it('should return the full version content', () => {
+		seedNote();
+		createSnapshot(db, NOTE_ID, {
+			version: 2,
+			title: 'Full Title',
+			content: '# Heading\n\nSome content',
+			checklistMode: true,
+			color: 'mint'
+		});
+
+		const summaries = listVersions(db, NOTE_ID);
+		const versionId = summaries[0].id;
+
+		const version = getVersion(db, NOTE_ID, versionId);
+		expect(version).not.toBeNull();
+		expect(version!.version).toBe(2);
+		expect(version!.title).toBe('Full Title');
+		expect(version!.content).toBe('# Heading\n\nSome content');
+		expect(version!.checklistMode).toBe(true);
+		expect(version!.color).toBe('mint');
+	});
+
+	it('should not return a version from a different note', () => {
+		const OTHER_NOTE_ID = 'other-note';
+		seedNote();
+		db.insert(notes).values({
+			id: OTHER_NOTE_ID,
+			userId: OWNER_ID,
+			title: 'Other',
+			content: '',
+			createdAt: new Date(),
+			updatedAt: new Date(),
+			version: 1
+		}).run();
+
+		createSnapshot(db, OTHER_NOTE_ID, { version: 1, title: 'Other', content: 'Other content', checklistMode: false, color: 'default' });
+		const summaries = listVersions(db, OTHER_NOTE_ID);
+		const versionId = summaries[0].id;
+
+		// Requesting version from wrong noteId returns null
+		expect(getVersion(db, NOTE_ID, versionId)).toBeNull();
+	});
+});
+
+describe('snapshotCurrentNote', () => {
+	it('should return false for a non-existent note', () => {
+		expect(snapshotCurrentNote(db, 'non-existent')).toBe(false);
+	});
+
+	it('should snapshot the current note state', () => {
+		seedNote({ title: 'Current Title', content: 'Current content', version: 5 });
+
+		const result = snapshotCurrentNote(db, NOTE_ID);
+		expect(result).toBe(true);
+
+		const rows = db.select().from(noteVersions).where(eq(noteVersions.noteId, NOTE_ID)).all();
+		expect(rows).toHaveLength(1);
+		expect(rows[0].version).toBe(5);
+		expect(rows[0].title).toBe('Current Title');
+		expect(rows[0].content).toBe('Current content');
+	});
+});

src/lib/server/versions-service.ts

@@ -0,0 +1,118 @@
+import type { Db } from './db/index.js';
+import { noteVersions, notes } from './db/schema.js';
+import { eq, and, desc } from 'drizzle-orm';
+import { v4 as uuidv4 } from 'uuid';
+import type { NoteVersion, NoteVersionSummary, NoteColor } from '$lib/types/index.js';
+
+const MAX_VERSIONS_PER_NOTE = 50;
+const CONTENT_PREVIEW_LENGTH = 80;
+
+/**
+ * Create a snapshot of a note's current state.
+ * Only called when content actually changed. Prunes snapshots beyond MAX_VERSIONS_PER_NOTE.
+ */
+export function createSnapshot(
+db: Db,
+noteId: string,
+snapshot: {
+version: number;
+title: string;
+content: string;
+checklistMode: boolean;
+color: string;
+}
+): void {
+const now = new Date();
+
+db.insert(noteVersions)
+.values({
+id: uuidv4(),
+noteId,
+version: snapshot.version,
+title: snapshot.title,
+content: snapshot.content,
+checklistMode: snapshot.checklistMode,
+color: snapshot.color,
+createdAt: now
+})
+.onConflictDoNothing()
+.run();
+
+// Prune: keep only the most recent MAX_VERSIONS_PER_NOTE snapshots
+const allVersions = db
+.select({ id: noteVersions.id })
+.from(noteVersions)
+.where(eq(noteVersions.noteId, noteId))
+.orderBy(desc(noteVersions.version))
+.all();
+
+if (allVersions.length > MAX_VERSIONS_PER_NOTE) {
+const toDelete = allVersions.slice(MAX_VERSIONS_PER_NOTE).map((v) => v.id);
+for (const id of toDelete) {
+db.delete(noteVersions).where(eq(noteVersions.id, id)).run();
+}
+}
+}
+
+/**
+ * List version summaries for a note, newest first.
+ */
+export function listVersions(db: Db, noteId: string): NoteVersionSummary[] {
+const rows = db
+.select()
+.from(noteVersions)
+.where(eq(noteVersions.noteId, noteId))
+.orderBy(desc(noteVersions.version))
+.all();
+
+return rows.map((row) => ({
+id: row.id,
+noteId: row.noteId,
+version: row.version,
+title: row.title,
+contentPreview: row.content.slice(0, CONTENT_PREVIEW_LENGTH),
+createdAt: row.createdAt
+}));
+}
+
+/**
+ * Get the full content of a specific version.
+ */
+export function getVersion(db: Db, noteId: string, versionId: string): NoteVersion | null {
+const row = db
+.select()
+.from(noteVersions)
+.where(and(eq(noteVersions.id, versionId), eq(noteVersions.noteId, noteId)))
+.get();
+
+if (!row) return null;
+
+return {
+id: row.id,
+noteId: row.noteId,
+version: row.version,
+title: row.title,
+content: row.content,
+checklistMode: row.checklistMode,
+color: row.color as NoteColor,
+createdAt: row.createdAt
+};
+}
+
+/**
+ * Snapshot the current state of a note (used before a restore).
+ */
+export function snapshotCurrentNote(db: Db, noteId: string): boolean {
+const currentNote = db.select().from(notes).where(eq(notes.id, noteId)).get();
+if (!currentNote) return false;
+
+createSnapshot(db, noteId, {
+version: currentNote.version,
+title: currentNote.title,
+content: currentNote.content,
+checklistMode: currentNote.checklistMode,
+color: currentNote.color
+});
+
+return true;
+}

src/lib/stores/notes.test.ts

@@ -0,0 +1,99 @@
+import { describe, it, expect } from 'vitest';
+import { mergeNotesByVersion } from './notes.js';
+import type { Note } from '$lib/types/index.js';
+
+function makeNote(overrides: Partial<Note> = {}): Note {
+	return {
+		id: 'note-1',
+		title: 'Test',
+		content: '- [ ] Item',
+		color: 'default',
+		pinned: false,
+		archived: false,
+		trashed: false,
+		trashedAt: null,
+		checklistMode: true,
+		sortOrder: 0,
+		createdAt: new Date(),
+		updatedAt: new Date(),
+		version: 1,
+		tags: [],
+		attachments: [],
+		collaborators: [],
+		isOwner: true,
+		isShared: false,
+		...overrides
+	};
+}
+
+describe('mergeNotesByVersion', () => {
+	it('keeps the local note when it has a higher version than the incoming note', () => {
+		const local = makeNote({ id: 'n1', version: 3, content: '- [x] Checked' });
+		const incoming = makeNote({ id: 'n1', version: 2, content: '- [ ] Unchecked' });
+
+		const result = mergeNotesByVersion([local], [incoming]);
+
+		expect(result).toHaveLength(1);
+		expect(result[0].content).toBe('- [x] Checked');
+		expect(result[0].version).toBe(3);
+	});
+
+	it('uses the incoming note when it has a higher or equal version', () => {
+		const local = makeNote({ id: 'n1', version: 2, content: '- [ ] Old' });
+		const incoming = makeNote({ id: 'n1', version: 3, content: '- [x] New' });
+
+		const result = mergeNotesByVersion([local], [incoming]);
+
+		expect(result).toHaveLength(1);
+		expect(result[0].content).toBe('- [x] New');
+		expect(result[0].version).toBe(3);
+	});
+
+	it('uses the incoming note when versions are equal', () => {
+		const local = makeNote({ id: 'n1', version: 2, content: 'local' });
+		const incoming = makeNote({ id: 'n1', version: 2, content: 'incoming' });
+
+		const result = mergeNotesByVersion([local], [incoming]);
+
+		expect(result[0].content).toBe('incoming');
+	});
+
+	it('handles notes not present in the local store', () => {
+		const incoming = makeNote({ id: 'n2', version: 1 });
+
+		const result = mergeNotesByVersion([], [incoming]);
+
+		expect(result).toHaveLength(1);
+		expect(result[0].id).toBe('n2');
+	});
+
+	it('preserves local-only notes not present in the incoming data', () => {
+		const localOnly = makeNote({ id: 'n1', version: 1, content: 'just created' });
+		const serverNote = makeNote({ id: 'n2', version: 1, content: 'from server' });
+
+		const result = mergeNotesByVersion([localOnly], [serverNote]);
+
+		expect(result).toHaveLength(2);
+		expect(result.find((n) => n.id === 'n1')?.content).toBe('just created');
+		expect(result.find((n) => n.id === 'n2')?.content).toBe('from server');
+	});
+
+	it('preserves multiple notes correctly during a race condition', () => {
+		const localNotes = [
+			makeNote({ id: 'n1', version: 5, content: '- [x] Just saved' }),
+			makeNote({ id: 'n2', version: 1, content: 'unchanged' })
+		];
+		const incomingNotes = [
+			makeNote({ id: 'n1', version: 4, content: '- [ ] Stale from server' }),
+			makeNote({ id: 'n2', version: 2, content: 'updated on server' })
+		];
+
+		const result = mergeNotesByVersion(localNotes, incomingNotes);
+
+		expect(result).toHaveLength(2);
+		// n1: local version 5 > incoming version 4 → keep local
+		expect(result[0].content).toBe('- [x] Just saved');
+		// n2: local version 1 < incoming version 2 → use incoming
+		expect(result[1].content).toBe('updated on server');
+	});
+});

src/lib/stores/notes.ts

@@ -53,12 +53,35 @@ function isNetworkError(err: unknown): boolean {
 	return err instanceof TypeError;
 }
 
+/**
+ * Merge incoming notes with current store, keeping the higher-version note
+ * when a conflict exists. This prevents a stale loadNotes response from
+ * overwriting a just-saved note (race between sync interval and updateNote).
+ */
+export function mergeNotesByVersion(current: Note[], incoming: Note[]): Note[] {
+	const currentMap = new Map(current.map((n) => [n.id, n]));
+	const incomingIds = new Set<string>();
+	const merged = incoming.map((incomingNote) => {
+		incomingIds.add(incomingNote.id);
+		const local = currentMap.get(incomingNote.id);
+		if (local && local.version > incomingNote.version) return local;
+		return incomingNote;
+	});
+	// Preserve local-only notes (e.g. just created, not yet in server/IDB response)
+	for (const local of current) {
+		if (!incomingIds.has(local.id)) {
+			merged.push(local);
+		}
+	}
+	return merged;
+}
+
 export async function loadNotes(filter: NoteFilter = 'all') {
 	// Load from IDB first for instant display
 	try {
 		const cached = await getAllNotes();
 		if (cached.length > 0) {
-			notes.set(cached);
+			notes.update((current) => current.length > 0 ? mergeNotesByVersion(current, cached) : cached);
 		}
 	} catch {
 		// IDB unavailable — continue with server fetch
@@ -71,7 +94,7 @@ export async function loadNotes(filter: NoteFilter = 'all') {
 		const res = await fetch(`/api/notes?filter=${filter}`);
 		if (res.ok) {
 			const data: Note[] = await res.json();
-			notes.set(data);
+			notes.update((current) => mergeNotesByVersion(current, data));
 			currentFilter.set(filter);
 
 			// Update IDB with server state
@@ -142,11 +165,19 @@ export async function createNote(note: NoteCreate): Promise<Note | null> {
 }
 
 export async function updateNote(id: string, updates: NoteUpdate): Promise<Note | null> {
+	// Read current version for 3-way merge base on the server
+	let baseVersion: number | undefined;
+	notes.update((list) => {
+		const current = list.find((n) => n.id === id);
+		if (current) baseVersion = current.version;
+		return list;
+	});
+
 	try {
 		const res = await fetch(`/api/notes/${id}`, {
 			method: 'PATCH',
 			headers: { 'Content-Type': 'application/json' },
-			body: JSON.stringify(updates)
+			body: JSON.stringify({ ...updates, baseVersion })
 		});
 		if (res.ok) {
 			const updated: Note = await res.json();
@@ -173,7 +204,7 @@ export async function updateNote(id: string, updates: NoteUpdate): Promise<Note
 			);
 			if (optimistic) {
 				await putNote(optimistic);
-				await addToSyncQueue({ noteId: id, operation: 'update', data: updates, timestamp: Date.now() });
+				await addToSyncQueue({ noteId: id, operation: 'update', data: updates, timestamp: Date.now(), baseVersion });
 				showToast('Saved offline — will sync when reconnected', 'info');
 			}
 			return optimistic;

src/lib/stores/preferences.test.ts

@@ -4,15 +4,22 @@ import { DEFAULT_PREFERENCES, BOOLEAN_PREF_KEYS } from '$lib/types/preferences.j
 describe('preferences defaults', () => {
 	it('should have correct default values', () => {
 		expect(DEFAULT_PREFERENCES).toEqual({
+			theme: 'system',
 			defaultNoteMode: 'richtext',
 			defaultNoteColor: 'default',
 			hideFooter: false,
-			sidebarDefaultState: 'open'
+			sidebarDefaultState: 'open',
+			notifyOnShare: true,
+			notifyOnCollabRemoved: true,
+			notifyOnNoteDeleted: true
 		});
 	});
 
 	it('should identify boolean preference keys', () => {
 		expect(BOOLEAN_PREF_KEYS.has('hideFooter')).toBe(true);
+		expect(BOOLEAN_PREF_KEYS.has('notifyOnShare')).toBe(true);
+		expect(BOOLEAN_PREF_KEYS.has('notifyOnCollabRemoved')).toBe(true);
+		expect(BOOLEAN_PREF_KEYS.has('notifyOnNoteDeleted')).toBe(true);
 		expect(BOOLEAN_PREF_KEYS.has('defaultNoteMode')).toBe(false);
 		expect(BOOLEAN_PREF_KEYS.has('defaultNoteColor')).toBe(false);
 		expect(BOOLEAN_PREF_KEYS.has('sidebarDefaultState')).toBe(false);

src/lib/sync/client.ts

@@ -100,10 +100,26 @@ async function pullChanges(): Promise<Note[]> {
 			const localNotes = await getAllNotes();
 			const localMap = new Map(localNotes.map((n) => [n.id, n]));
 
+			// Build pending-fields map from sync queue to protect unpushed local changes
+			let pendingFieldsMap = new Map<string, Set<string>>();
+			try {
+				const queue = await getSyncQueue();
+				for (const item of queue) {
+					if (item.data) {
+						const fields = pendingFieldsMap.get(item.noteId) || new Set<string>();
+						Object.keys(item.data).forEach((k) => fields.add(k));
+						pendingFieldsMap.set(item.noteId, fields);
+					}
+				}
+			} catch {
+				// Queue unavailable — merge without protection
+			}
+
 			for (const remote of remoteNotes) {
 				const local = localMap.get(remote.id);
 				if (local) {
-					const merged = mergeNotes(local, remote);
+					const pendingFields = pendingFieldsMap.get(remote.id);
+					const merged = mergeNotes(local, remote, pendingFields);
 					await putNote(merged);
 				} else {
 					await putNote(remote);

src/lib/sync/crdt.ts

@@ -1,29 +1,39 @@
 import type { Note } from '$lib/types/index.js';
 
+/** Fields that can be individually merged between local and remote notes */
+const MUTABLE_FIELDS = ['title', 'content', 'color', 'pinned', 'archived', 'trashed', 'checklistMode', 'sortOrder'] as const;
+
 /**
- * Last-Write-Wins (LWW) merge strategy per field.
- * For a single-user app with multiple devices, this is sufficient.
- * Each field is resolved by comparing updatedAt timestamps.
+ * Last-Write-Wins (LWW) merge strategy with pending-field protection.
+ *
+ * When remote is newer, takes remote values for all fields EXCEPT those
+ * listed in `pendingFields` — these represent locally-queued changes that
+ * haven't been pushed yet and must be preserved.
  */
-export function mergeNotes(local: Note, remote: Note): Note {
-	// If remote is newer overall, take remote
+export function mergeNotes(local: Note, remote: Note, pendingFields?: Set<string>): Note {
 	const localTime = new Date(local.updatedAt).getTime();
 	const remoteTime = new Date(remote.updatedAt).getTime();
 
-	if (remoteTime > localTime) {
-		return { ...remote };
-	}
+	const remoteWins = remoteTime > localTime ||
+		(remoteTime === localTime && remote.version > local.version);
 
-	if (localTime > remoteTime) {
+	if (!remoteWins) {
 		return { ...local };
 	}
 
-	// Same timestamp - prefer higher version number
-	if (remote.version > local.version) {
+	// Remote wins — take remote as base, but preserve pending local fields
+	if (!pendingFields || pendingFields.size === 0) {
 		return { ...remote };
 	}
 
-	return { ...local };
+	const merged = { ...remote };
+	for (const field of MUTABLE_FIELDS) {
+		if (pendingFields.has(field)) {
+			(merged as unknown as Record<string, unknown>)[field] = (local as unknown as Record<string, unknown>)[field];
+		}
+	}
+
+	return merged;
 }
 
 /**

src/lib/sync/idb.ts

@@ -48,6 +48,7 @@ export interface SyncQueueItem {
 	operation: 'create' | 'update' | 'delete';
 	data?: Partial<Note>;
 	timestamp: number;
+	baseVersion?: number;
 }
 
 let dbPromise: Promise<IDBPDatabase<CrumbsDB>> | null = null;

src/lib/sync/server.test.ts

@@ -224,21 +224,69 @@ describe('processSyncPush — shared notes', () => {
 		expect(note.trashed).toBe(false);
 	});
 
-	it('should reject changes with older timestamp than server note', async () => {
+	it('should apply field changes even when timestamp is older (no timestamp gate)', async () => {
 		const t2 = new Date('2024-01-02T00:00:00Z');
 		seedSharedNote('n1', { updatedAt: t2, createdAt: new Date('2024-01-01T00:00:00Z') });
 
-		// Collaborator's change has a timestamp BEFORE the server's updatedAt
+		// Collaborator's change has a timestamp BEFORE the server's updatedAt.
+		// With field-level sync, the title change should still be applied because
+		// the sync data only contains fields the client explicitly modified.
 		const t1 = new Date('2024-01-01T12:00:00Z').getTime();
 		await processSyncPush(db, [{
 			noteId: 'n1',
 			operation: 'update',
 			timestamp: t1,
-			data: { title: 'Stale edit' }
+			data: { title: 'Offline edit' }
 		}], COLLAB_ID);
 
 		const note = db.select().from(notes).where(eq(notes.id, 'n1')).get()!;
-		expect(note.title).toBe('Shared Note'); // Unchanged
+		expect(note.title).toBe('Offline edit');
+		// updatedAt should be max of change timestamp and server timestamp
+		expect(note.updatedAt.getTime()).toBe(t2.getTime());
+	});
+
+	it('should merge checklist content when collaborator pushes concurrent content change', async () => {
+		const t1 = new Date('2024-01-01T00:00:00Z');
+		seedSharedNote('n1', {
+			updatedAt: t1,
+			createdAt: t1,
+			content: '- [ ] Milk\n- [ ] Bread',
+			checklistMode: true
+		});
+
+		// Simulate owner editing content on server (checking Bread)
+		const t2 = new Date('2024-01-01T12:00:00Z');
+		db.update(notes)
+			.set({ content: '- [ ] Milk\n- [x] Bread', updatedAt: t2, version: 2 })
+			.where(eq(notes.id, 'n1'))
+			.run();
+
+		// Create a version snapshot for the base content (version 1)
+		const { noteVersions } = await import('../server/db/schema.js');
+		db.insert(noteVersions).values({
+			id: 'snap-1',
+			noteId: 'n1',
+			version: 1,
+			title: 'Shared Note',
+			content: '- [ ] Milk\n- [ ] Bread',
+			checklistMode: true,
+			color: 'default',
+			createdAt: t1
+		}).run();
+
+		// Collaborator was offline since version 1, checked Milk
+		const t3 = new Date('2024-01-01T13:00:00Z').getTime();
+		await processSyncPush(db, [{
+			noteId: 'n1',
+			operation: 'update',
+			timestamp: t3,
+			data: { content: '- [x] Milk\n- [ ] Bread' },
+			baseVersion: 1
+		}], COLLAB_ID);
+
+		const note = db.select().from(notes).where(eq(notes.id, 'n1')).get()!;
+		// Both changes should be merged: Milk checked by collab, Bread checked by owner
+		expect(note.content).toBe('- [x] Milk\n- [x] Bread');
 	});
 
 	it('should not allow non-collaborator to update the note', async () => {

src/lib/sync/server.ts

@@ -1,10 +1,37 @@
 import type { Db } from '$lib/server/db/index.js';
-import { notes, noteCollaborators, noteUserState, syncLog } from '$lib/server/db/schema.js';
-import { eq, gt, and, or, sql } from 'drizzle-orm';
+import { notes, noteCollaborators, noteUserState, noteVersions, syncLog } from '$lib/server/db/schema.js';
+import { eq, gt, and, or, sql, desc, lte } from 'drizzle-orm';
 import { extractTags } from '$lib/utils/tags.js';
 import { syncNoteTags } from '$lib/server/tags.js';
 import { canAccessNote } from '$lib/server/api-utils.js';
+import { mergeContent } from '$lib/utils/content-merge.js';
 import type { SyncQueueItem } from './idb.js';
+
+/**
+ * Find the base content for 3-way merge from version snapshots.
+ * Returns the content from the snapshot at or before the given version,
+ * or the current note content if no snapshot is found.
+ */
+function getBaseContent(tx: Parameters<Parameters<Db['transaction']>[0]>[0], noteId: string, baseVersion?: number): string | null {
+	if (baseVersion !== undefined) {
+		const snapshot = tx.select({ content: noteVersions.content })
+			.from(noteVersions)
+			.where(and(eq(noteVersions.noteId, noteId), lte(noteVersions.version, baseVersion)))
+			.orderBy(desc(noteVersions.version))
+			.limit(1)
+			.get();
+		if (snapshot) return snapshot.content;
+	}
+	// Fallback: get the most recent snapshot before the current version
+	const latest = tx.select({ content: noteVersions.content })
+		.from(noteVersions)
+		.where(eq(noteVersions.noteId, noteId))
+		.orderBy(desc(noteVersions.version))
+		.limit(1)
+		.get();
+	return latest?.content ?? null;
+}
+
 /**
  * Process incoming sync changes from client.
  */
@@ -31,59 +58,70 @@ export async function processSyncPush(db: Db, changes: SyncQueueItem[], userId:
 
 						if (!isOwner && !isCollaborator) continue;
 
-						if (change.timestamp > note.updatedAt.getTime()) {
-							// Shared fields: title, content, color, checklistMode
-							const sharedData: Record<string, unknown> = {
-								updatedAt: new Date(change.timestamp),
-								version: note.version + 1
-							};
-							if (change.data.title !== undefined) sharedData.title = change.data.title;
-							if (change.data.content !== undefined) sharedData.content = change.data.content;
-							if (change.data.color !== undefined) sharedData.color = change.data.color;
-							if (change.data.checklistMode !== undefined) sharedData.checklistMode = change.data.checklistMode;
+						// Apply field-level updates unconditionally (no timestamp gate).
+						// Each sync change only contains the fields the client explicitly modified,
+						// so applying them won't overwrite other users' changes to different fields.
+						const sharedData: Record<string, unknown> = {
+							updatedAt: new Date(Math.max(change.timestamp, note.updatedAt.getTime())),
+							version: note.version + 1
+						};
+						if (change.data.title !== undefined) sharedData.title = change.data.title;
+						if (change.data.color !== undefined) sharedData.color = change.data.color;
+						if (change.data.checklistMode !== undefined) sharedData.checklistMode = change.data.checklistMode;
 
-							if (isOwner) {
-								// Owner: per-user fields go to notes table
-								if (change.data.pinned !== undefined) sharedData.pinned = change.data.pinned;
-								if (change.data.archived !== undefined) sharedData.archived = change.data.archived;
-								if (change.data.trashed !== undefined) {
-									sharedData.trashed = change.data.trashed;
-									sharedData.trashedAt = change.data.trashed ? new Date(change.timestamp) : null;
-								}
-								if (change.data.sortOrder !== undefined) sharedData.sortOrder = change.data.sortOrder;
+						// Content: 3-way merge to preserve concurrent edits from other users
+						if (change.data.content !== undefined && change.data.content !== note.content) {
+							const baseContent = getBaseContent(tx, change.noteId, change.baseVersion);
+							if (baseContent !== null && baseContent !== note.content) {
+								// 3-way merge: base, incoming (local), server current (remote)
+								sharedData.content = mergeContent(baseContent, change.data.content, note.content);
+							} else {
+								// No base or base matches server — take incoming content
+								sharedData.content = change.data.content;
 							}
+						}
 
-							tx.update(notes)
-								.set(sharedData)
-								.where(eq(notes.id, change.noteId))
-								.run();
+						if (isOwner) {
+							// Owner: per-user fields go to notes table
+							if (change.data.pinned !== undefined) sharedData.pinned = change.data.pinned;
+							if (change.data.archived !== undefined) sharedData.archived = change.data.archived;
+							if (change.data.trashed !== undefined) {
+								sharedData.trashed = change.data.trashed;
+								sharedData.trashedAt = change.data.trashed ? new Date(change.timestamp) : null;
+							}
+							if (change.data.sortOrder !== undefined) sharedData.sortOrder = change.data.sortOrder;
+						}
 
-							// Collaborator: per-user fields go to noteUserState
-							if (!isOwner) {
-								const hasPerUser = change.data.pinned !== undefined ||
-									change.data.archived !== undefined ||
-									change.data.sortOrder !== undefined;
-								if (hasPerUser) {
-									const existing = tx.select().from(noteUserState)
+						tx.update(notes)
+							.set(sharedData)
+							.where(eq(notes.id, change.noteId))
+							.run();
+
+						// Collaborator: per-user fields go to noteUserState
+						if (!isOwner) {
+							const hasPerUser = change.data.pinned !== undefined ||
+								change.data.archived !== undefined ||
+								change.data.sortOrder !== undefined;
+							if (hasPerUser) {
+								const existing = tx.select().from(noteUserState)
+									.where(and(eq(noteUserState.noteId, change.noteId), eq(noteUserState.userId, userId)))
+									.get();
+								if (existing) {
+									const updates: Record<string, unknown> = {};
+									if (change.data.pinned !== undefined) updates.pinned = change.data.pinned;
+									if (change.data.archived !== undefined) updates.archived = change.data.archived;
+									if (change.data.sortOrder !== undefined) updates.sortOrder = change.data.sortOrder;
+									tx.update(noteUserState).set(updates)
 										.where(and(eq(noteUserState.noteId, change.noteId), eq(noteUserState.userId, userId)))
-										.get();
-									if (existing) {
-										const updates: Record<string, unknown> = {};
-										if (change.data.pinned !== undefined) updates.pinned = change.data.pinned;
-										if (change.data.archived !== undefined) updates.archived = change.data.archived;
-										if (change.data.sortOrder !== undefined) updates.sortOrder = change.data.sortOrder;
-										tx.update(noteUserState).set(updates)
-											.where(and(eq(noteUserState.noteId, change.noteId), eq(noteUserState.userId, userId)))
-											.run();
-									} else {
-										tx.insert(noteUserState).values({
-											noteId: change.noteId,
-											userId,
-											pinned: change.data.pinned ?? false,
-											archived: change.data.archived ?? false,
-											sortOrder: change.data.sortOrder ?? 0
-										}).run();
-									}
+										.run();
+								} else {
+									tx.insert(noteUserState).values({
+										noteId: change.noteId,
+										userId,
+										pinned: change.data.pinned ?? false,
+										archived: change.data.archived ?? false,
+										sortOrder: change.data.sortOrder ?? 0
+									}).run();
 								}
 							}
 						}

src/lib/sync/sync.test.ts

@@ -55,6 +55,71 @@ describe('mergeNotes (LWW)', () => {
 		const result = mergeNotes(local, remote);
 		expect(result.title).toBe('Local');
 	});
+
+	it('should preserve pending local fields when remote is newer', () => {
+		const local = makeNote({
+			title: 'Local title',
+			content: 'Local content',
+			color: 'coral',
+			updatedAt: new Date('2024-01-01'),
+			version: 1
+		});
+		const remote = makeNote({
+			title: 'Remote title',
+			content: 'Remote content',
+			color: 'default',
+			updatedAt: new Date('2024-01-02'),
+			version: 2
+		});
+
+		// Content has pending local changes; title and color do not
+		const pendingFields = new Set(['content']);
+		const result = mergeNotes(local, remote, pendingFields);
+
+		// Remote wins overall, but content is preserved from local
+		expect(result.title).toBe('Remote title');
+		expect(result.content).toBe('Local content');
+		expect(result.color).toBe('default'); // remote wins for non-pending field
+		expect(result.version).toBe(2); // metadata from remote
+	});
+
+	it('should take remote values for non-pending fields when remote is newer', () => {
+		const local = makeNote({
+			pinned: true,
+			archived: true,
+			updatedAt: new Date('2024-01-01')
+		});
+		const remote = makeNote({
+			pinned: false,
+			archived: false,
+			updatedAt: new Date('2024-01-02')
+		});
+
+		const pendingFields = new Set(['pinned']);
+		const result = mergeNotes(local, remote, pendingFields);
+
+		expect(result.pinned).toBe(true); // pending — preserved
+		expect(result.archived).toBe(false); // not pending — remote wins
+	});
+
+	it('should ignore pendingFields when local is newer', () => {
+		const local = makeNote({
+			title: 'Local',
+			updatedAt: new Date('2024-01-02'),
+			version: 2
+		});
+		const remote = makeNote({
+			title: 'Remote',
+			updatedAt: new Date('2024-01-01'),
+			version: 1
+		});
+
+		const pendingFields = new Set(['title']);
+		const result = mergeNotes(local, remote, pendingFields);
+
+		// Local wins entirely since it's newer
+		expect(result.title).toBe('Local');
+	});
 });
 
 describe('hasChanges', () => {

src/lib/types/index.ts

@@ -17,6 +17,7 @@ export interface Note {
 	collaborators?: Collaborator[];
 	isOwner?: boolean;
 	isShared?: boolean;
+	shareToken?: string;
 }
 
 export interface Collaborator {
@@ -98,5 +99,51 @@ export type NoteFilter = 'all' | 'archived' | 'trashed';
 
 export type SyncStatus = 'synced' | 'syncing' | 'offline' | 'error';
 
+export interface NoteVersionSummary {
+	id: string;
+	noteId: string;
+	version: number;
+	title: string;
+	contentPreview: string;
+	createdAt: Date;
+}
+
+export interface NoteVersion {
+	id: string;
+	noteId: string;
+	version: number;
+	title: string;
+	content: string;
+	checklistMode: boolean;
+	color: NoteColor;
+	createdAt: Date;
+}
+
+export interface NoteShare {
+	noteId: string;
+	token: string;
+	createdAt: Date;
+	expiresAt: Date | null;
+}
+
+export interface PublicAttachment {
+	id: string;
+	filename: string;
+	mimeType: string;
+	size: number;
+	featured: boolean;
+	createdAt: Date;
+}
+
+export interface SharedNoteData {
+	title: string;
+	content: string;
+	checklistMode: boolean;
+	color: NoteColor;
+	attachments: PublicAttachment[];
+	createdAt: Date;
+	updatedAt: Date;
+}
+
 export type { UserPreferences } from './preferences.js';
 export { DEFAULT_PREFERENCES, BOOLEAN_PREF_KEYS } from './preferences.js';

src/lib/types/preferences.ts

@@ -1,19 +1,30 @@
 import type { NoteColor } from './index.js';
 
 export interface UserPreferences {
+	theme: 'system' | 'light' | 'dark';
 	defaultNoteMode: 'richtext' | 'markdown';
 	defaultNoteColor: NoteColor;
 	hideFooter: boolean;
 	sidebarDefaultState: 'open' | 'collapsed';
+	notifyOnShare: boolean;
+	notifyOnCollabRemoved: boolean;
+	notifyOnNoteDeleted: boolean;
 }
 
 export const DEFAULT_PREFERENCES: UserPreferences = {
+	theme: 'system',
 	defaultNoteMode: 'richtext',
 	defaultNoteColor: 'default',
 	hideFooter: false,
-	sidebarDefaultState: 'open'
+	sidebarDefaultState: 'open',
+	notifyOnShare: true,
+	notifyOnCollabRemoved: true,
+	notifyOnNoteDeleted: true
 };
 
 export const BOOLEAN_PREF_KEYS: ReadonlySet<keyof UserPreferences> = new Set([
-	'hideFooter'
+	'hideFooter',
+	'notifyOnShare',
+	'notifyOnCollabRemoved',
+	'notifyOnNoteDeleted'
 ]);

src/lib/utils/checklist.test.ts

@@ -0,0 +1,326 @@
+import { describe, it, expect } from 'vitest';
+import { parseChecklist, serializeChecklist, toggleItemWithCascade, indentItem, outdentItem, linkifyText, unlinkifyHtml, type ChecklistItem } from '$lib/utils/checklist.js';
+
+describe('parseChecklist', () => {
+	it('parses flat checklist items', () => {
+		const items = parseChecklist('- [ ] Milk\n- [x] Eggs');
+		expect(items).toHaveLength(2);
+		expect(items[0]).toMatchObject({ text: 'Milk', checked: false, parentId: null });
+		expect(items[1]).toMatchObject({ text: 'Eggs', checked: true, parentId: null });
+	});
+
+	it('parses nested children with 2-space prefix', () => {
+		const items = parseChecklist('- [ ] Groceries\n  - [ ] Milk\n  - [x] Eggs');
+		expect(items).toHaveLength(3);
+		expect(items[0]).toMatchObject({ text: 'Groceries', checked: false, parentId: null });
+		expect(items[1]).toMatchObject({ text: 'Milk', checked: false, parentId: items[0].id });
+		expect(items[2]).toMatchObject({ text: 'Eggs', checked: true, parentId: items[0].id });
+	});
+
+	it('treats orphaned children as top-level', () => {
+		const items = parseChecklist('  - [ ] Orphan\n- [ ] Parent');
+		expect(items[0]).toMatchObject({ text: 'Orphan', parentId: null });
+	});
+
+	it('returns one empty item for blank content', () => {
+		const items = parseChecklist('');
+		expect(items).toHaveLength(1);
+		expect(items[0]).toMatchObject({ text: '', checked: false, parentId: null });
+	});
+
+	it('handles mixed top-level and nested items', () => {
+		const content = '- [ ] A\n  - [ ] A1\n  - [ ] A2\n- [ ] B\n  - [x] B1';
+		const items = parseChecklist(content);
+		expect(items).toHaveLength(5);
+		expect(items[1].parentId).toBe(items[0].id);
+		expect(items[2].parentId).toBe(items[0].id);
+		expect(items[4].parentId).toBe(items[3].id);
+	});
+});
+
+describe('serializeChecklist', () => {
+	it('serializes flat items', () => {
+		const items: ChecklistItem[] = [
+			{ id: '1', text: 'Milk', checked: false, parentId: null },
+			{ id: '2', text: 'Eggs', checked: true, parentId: null }
+		];
+		expect(serializeChecklist(items)).toBe('- [ ] Milk\n- [x] Eggs');
+	});
+
+	it('serializes nested items with 2-space prefix', () => {
+		const items: ChecklistItem[] = [
+			{ id: '1', text: 'Groceries', checked: false, parentId: null },
+			{ id: '2', text: 'Milk', checked: false, parentId: '1' },
+			{ id: '3', text: 'Eggs', checked: true, parentId: '1' }
+		];
+		expect(serializeChecklist(items)).toBe('- [ ] Groceries\n  - [ ] Milk\n  - [x] Eggs');
+	});
+
+	it('groups children under parents regardless of array order', () => {
+		const items: ChecklistItem[] = [
+			{ id: '1', text: 'A', checked: false, parentId: null },
+			{ id: '3', text: 'B', checked: false, parentId: null },
+			{ id: '2', text: 'A1', checked: false, parentId: '1' }
+		];
+		const result = serializeChecklist(items);
+		expect(result).toBe('- [ ] A\n  - [ ] A1\n- [ ] B');
+	});
+
+	it('round-trips parse then serialize', () => {
+		const original = '- [ ] Groceries\n  - [ ] Milk\n  - [x] Eggs\n- [ ] Clean';
+		const items = parseChecklist(original);
+		expect(serializeChecklist(items)).toBe(original);
+	});
+});
+
+describe('toggleItemWithCascade', () => {
+	it('checking a parent checks all children', () => {
+		const items: ChecklistItem[] = [
+			{ id: '1', text: 'Parent', checked: false, parentId: null },
+			{ id: '2', text: 'Child A', checked: false, parentId: '1' },
+			{ id: '3', text: 'Child B', checked: false, parentId: '1' }
+		];
+		const result = toggleItemWithCascade('1', items);
+		expect(result.every((i) => i.checked)).toBe(true);
+	});
+
+	it('unchecking a parent unchecks all children', () => {
+		const items: ChecklistItem[] = [
+			{ id: '1', text: 'Parent', checked: true, parentId: null },
+			{ id: '2', text: 'Child A', checked: true, parentId: '1' },
+			{ id: '3', text: 'Child B', checked: true, parentId: '1' }
+		];
+		const result = toggleItemWithCascade('1', items);
+		expect(result.every((i) => !i.checked)).toBe(true);
+	});
+
+	it('checking a child does not affect parent', () => {
+		const items: ChecklistItem[] = [
+			{ id: '1', text: 'Parent', checked: false, parentId: null },
+			{ id: '2', text: 'Child', checked: false, parentId: '1' }
+		];
+		const result = toggleItemWithCascade('2', items);
+		expect(result.find((i) => i.id === '1')!.checked).toBe(false);
+		expect(result.find((i) => i.id === '2')!.checked).toBe(true);
+	});
+
+	it('unchecking a child with deleted parent orphans it', () => {
+		const items: ChecklistItem[] = [
+			{ id: '2', text: 'Orphan', checked: true, parentId: 'deleted-id' }
+		];
+		const result = toggleItemWithCascade('2', items);
+		expect(result[0].checked).toBe(false);
+		expect(result[0].parentId).toBeNull();
+	});
+
+	it('unchecking a child repositions it after its parent and siblings', () => {
+		// Simulates: parent + 2 children, one child checked (at end of array as done item)
+		const items: ChecklistItem[] = [
+			{ id: '1', text: 'Parent', checked: false, parentId: null },
+			{ id: '3', text: 'Child B', checked: false, parentId: '1' },
+			{ id: '4', text: 'Other', checked: false, parentId: null },
+			{ id: '2', text: 'Child A', checked: true, parentId: '1' }  // done, at end
+		];
+		const result = toggleItemWithCascade('2', items);
+		// Child A should be repositioned after Child B (last sibling), not stay at end
+		const ids = result.map(i => i.id);
+		expect(ids).toEqual(['1', '3', '2', '4']);
+		expect(result.find(i => i.id === '2')!.checked).toBe(false);
+	});
+});
+
+describe('indentItem', () => {
+	it('sets parentId to nearest preceding top-level item', () => {
+		const items: ChecklistItem[] = [
+			{ id: '1', text: 'A', checked: false, parentId: null },
+			{ id: '2', text: 'B', checked: false, parentId: null }
+		];
+		const active = items.filter(i => !i.checked);
+		const result = indentItem('2', items, active);
+		expect(result.find((i) => i.id === '2')!.parentId).toBe('1');
+	});
+
+	it('no-op if already a child', () => {
+		const items: ChecklistItem[] = [
+			{ id: '1', text: 'A', checked: false, parentId: null },
+			{ id: '2', text: 'B', checked: false, parentId: '1' }
+		];
+		const active = items.filter(i => !i.checked);
+		const result = indentItem('2', items, active);
+		expect(result).toEqual(items);
+	});
+
+	it('no-op if first item (no parent above)', () => {
+		const items: ChecklistItem[] = [
+			{ id: '1', text: 'A', checked: false, parentId: null }
+		];
+		const active = items.filter(i => !i.checked);
+		const result = indentItem('1', items, active);
+		expect(result[0].parentId).toBeNull();
+	});
+
+	it('reparents children to grandparent when indenting a parent', () => {
+		const items: ChecklistItem[] = [
+			{ id: '1', text: 'A', checked: false, parentId: null },
+			{ id: '2', text: 'B', checked: false, parentId: null },
+			{ id: '3', text: 'C', checked: false, parentId: '2' },
+			{ id: '4', text: 'D', checked: false, parentId: '2' }
+		];
+		const active = items.filter(i => !i.checked);
+		const result = indentItem('2', items, active);
+		expect(result.find((i) => i.id === '2')!.parentId).toBe('1');
+		expect(result.find((i) => i.id === '3')!.parentId).toBe('1');
+		expect(result.find((i) => i.id === '4')!.parentId).toBe('1');
+	});
+});
+
+describe('outdentItem', () => {
+	it('sets parentId to null', () => {
+		const items: ChecklistItem[] = [
+			{ id: '1', text: 'A', checked: false, parentId: null },
+			{ id: '2', text: 'B', checked: false, parentId: '1' }
+		];
+		const result = outdentItem('2', items);
+		expect(result.find((i) => i.id === '2')!.parentId).toBeNull();
+	});
+
+	it('no-op if already top-level', () => {
+		const items: ChecklistItem[] = [
+			{ id: '1', text: 'A', checked: false, parentId: null }
+		];
+		const result = outdentItem('1', items);
+		expect(result[0].parentId).toBeNull();
+	});
+
+	it('adopts consecutive siblings below with same parentId', () => {
+		const items: ChecklistItem[] = [
+			{ id: '1', text: 'A', checked: false, parentId: null },
+			{ id: '2', text: 'B', checked: false, parentId: '1' },
+			{ id: '3', text: 'C', checked: false, parentId: '1' },
+			{ id: '4', text: 'D', checked: false, parentId: '1' },
+			{ id: '5', text: 'E', checked: false, parentId: null }
+		];
+		const result = outdentItem('2', items);
+		expect(result.find((i) => i.id === '2')!.parentId).toBeNull();
+		expect(result.find((i) => i.id === '3')!.parentId).toBe('2');
+		expect(result.find((i) => i.id === '4')!.parentId).toBe('2');
+		expect(result.find((i) => i.id === '5')!.parentId).toBeNull();
+	});
+
+	it('stops adoption at first non-sibling', () => {
+		const items: ChecklistItem[] = [
+			{ id: '1', text: 'A', checked: false, parentId: null },
+			{ id: '2', text: 'B', checked: false, parentId: '1' },
+			{ id: '5', text: 'E', checked: false, parentId: null },
+			{ id: '3', text: 'C', checked: false, parentId: '1' }
+		];
+		const result = outdentItem('2', items);
+		expect(result.find((i) => i.id === '2')!.parentId).toBeNull();
+		expect(result.find((i) => i.id === '5')!.parentId).toBeNull();
+		expect(result.find((i) => i.id === '3')!.parentId).toBe('1');
+	});
+});
+
+describe('linkifyText', () => {
+	it('converts https URLs to anchor tags', () => {
+		expect(linkifyText('visit https://example.com today')).toBe(
+			'visit <a href="https://example.com" target="_blank" rel="noopener noreferrer" class="checklist-link">https://example.com</a> today'
+		);
+	});
+
+	it('converts http URLs to anchor tags', () => {
+		expect(linkifyText('go to http://example.com')).toBe(
+			'go to <a href="http://example.com" target="_blank" rel="noopener noreferrer" class="checklist-link">http://example.com</a>'
+		);
+	});
+
+	it('converts bare www URLs with https href', () => {
+		expect(linkifyText('check www.example.com')).toBe(
+			'check <a href="https://www.example.com" target="_blank" rel="noopener noreferrer" class="checklist-link">www.example.com</a>'
+		);
+	});
+
+	it('handles multiple URLs in one string', () => {
+		const result = linkifyText('see https://a.com and https://b.com');
+		expect(result).toContain('href="https://a.com"');
+		expect(result).toContain('href="https://b.com"');
+	});
+
+	it('returns plain text unchanged when no URLs present', () => {
+		expect(linkifyText('just some text')).toBe('just some text');
+	});
+
+	it('HTML-escapes user content to prevent XSS', () => {
+		expect(linkifyText('<script>alert("xss")</script>')).toBe(
+			'&lt;script&gt;alert(&quot;xss&quot;)&lt;/script&gt;'
+		);
+	});
+
+	it('HTML-escapes text around URLs', () => {
+		expect(linkifyText('<b>bold</b> https://example.com')).toContain('&lt;b&gt;bold&lt;/b&gt;');
+		expect(linkifyText('<b>bold</b> https://example.com')).toContain('href="https://example.com"');
+	});
+
+	it('handles URL at start of string', () => {
+		expect(linkifyText('https://example.com is great')).toContain('href="https://example.com"');
+	});
+
+	it('handles URL at end of string', () => {
+		expect(linkifyText('visit https://example.com')).toContain('href="https://example.com"');
+	});
+
+	it('does not linkify partial matches without protocol or www', () => {
+		expect(linkifyText('example.com is not linked')).toBe('example.com is not linked');
+	});
+
+	it('handles URLs with paths and query strings', () => {
+		const url = 'https://example.com/path?q=1&b=2';
+		const result = linkifyText(url);
+		expect(result).toContain('href="https://example.com/path?q=1&amp;b=2"');
+	});
+
+	it('strips trailing punctuation from URLs', () => {
+		expect(linkifyText('see https://example.com.')).toBe(
+			'see <a href="https://example.com" target="_blank" rel="noopener noreferrer" class="checklist-link">https://example.com</a>.'
+		);
+	});
+
+	it('returns empty string for empty input', () => {
+		expect(linkifyText('')).toBe('');
+	});
+});
+
+describe('unlinkifyHtml', () => {
+	it('strips anchor tags and returns text content', () => {
+		expect(unlinkifyHtml('visit <a href="https://example.com">https://example.com</a> today'))
+			.toBe('visit https://example.com today');
+	});
+
+	it('returns plain text unchanged', () => {
+		expect(unlinkifyHtml('just text')).toBe('just text');
+	});
+
+	it('handles multiple anchor tags', () => {
+		expect(unlinkifyHtml('<a href="https://a.com">https://a.com</a> and <a href="https://b.com">https://b.com</a>'))
+			.toBe('https://a.com and https://b.com');
+	});
+
+	it('returns empty string for empty input', () => {
+		expect(unlinkifyHtml('')).toBe('');
+	});
+
+	it('handles div and br tags from contenteditable', () => {
+		expect(unlinkifyHtml('line1<br>line2')).toBe('line1line2');
+	});
+
+	it('decodes HTML entities after stripping tags', () => {
+		expect(unlinkifyHtml('Tom &amp; Jerry')).toBe('Tom & Jerry');
+		expect(unlinkifyHtml('&lt;b&gt;bold&lt;/b&gt;')).toBe('<b>bold</b>');
+		expect(unlinkifyHtml('say &quot;hello&quot;')).toBe('say "hello"');
+	});
+
+	it('converts &nbsp; from contenteditable to regular spaces', () => {
+		expect(unlinkifyHtml('hello&nbsp;world')).toBe('hello world');
+		expect(unlinkifyHtml('a&nbsp;&nbsp;b')).toBe('a  b');
+	});
+});

src/lib/utils/checklist.ts

@@ -0,0 +1,199 @@
+export interface ChecklistItem {
+	id: string;
+	text: string;
+	checked: boolean;
+	parentId: string | null;
+}
+
+export function generateId(): string {
+	return crypto.randomUUID();
+}
+
+export function isChild(item: ChecklistItem): boolean {
+	return item.parentId !== null;
+}
+
+export function getChildren(parentId: string, items: ChecklistItem[]): ChecklistItem[] {
+	return items.filter((i) => i.parentId === parentId);
+}
+
+export function getParent(item: ChecklistItem, items: ChecklistItem[]): ChecklistItem | undefined {
+	return item.parentId ? items.find((i) => i.id === item.parentId) : undefined;
+}
+
+export function toggleItemWithCascade(id: string, items: ChecklistItem[]): ChecklistItem[] {
+	const target = items.find((i) => i.id === id)!;
+	const newChecked = !target.checked;
+
+	let result = items.map((item) => {
+		if (item.id === id) return { ...item, checked: newChecked };
+		if (item.parentId === id) return { ...item, checked: newChecked };
+		return item;
+	});
+
+	// When unchecking a child: reposition it after its parent/siblings in the array
+	// (otherwise it stays at the end of the array where done items live)
+	if (!newChecked && target.parentId) {
+		const parentExists = result.some((i) => i.id === target.parentId);
+		if (!parentExists) {
+			// Parent deleted — orphan it
+			result = result.map((i) => (i.id === id ? { ...i, parentId: null } : i));
+		} else {
+			// Remove the item from its current position
+			const uncheckedItem = result.find((i) => i.id === id)!;
+			result = result.filter((i) => i.id !== id);
+			// Find the last sibling or the parent, insert after it
+			let insertAfter = -1;
+			for (let i = 0; i < result.length; i++) {
+				if (result[i].id === target.parentId || result[i].parentId === target.parentId) {
+					insertAfter = i;
+				}
+			}
+			if (insertAfter >= 0) {
+				result.splice(insertAfter + 1, 0, uncheckedItem);
+			} else {
+				result.push(uncheckedItem);
+			}
+		}
+	}
+
+	return result;
+}
+
+export function indentItem(id: string, items: ChecklistItem[], activeItems: ChecklistItem[]): ChecklistItem[] {
+	const item = items.find((i) => i.id === id);
+	if (!item || item.parentId !== null) return items;
+
+	const activeIndex = activeItems.findIndex((i) => i.id === id);
+	let newParentId: string | null = null;
+	for (let i = activeIndex - 1; i >= 0; i--) {
+		if (activeItems[i].parentId === null) {
+			newParentId = activeItems[i].id;
+			break;
+		}
+	}
+	if (!newParentId) return items;
+
+	return items.map((i) => {
+		if (i.id === id) return { ...i, parentId: newParentId };
+		if (i.parentId === id) return { ...i, parentId: newParentId };
+		return i;
+	});
+}
+
+export function outdentItem(id: string, items: ChecklistItem[]): ChecklistItem[] {
+	const index = items.findIndex((i) => i.id === id);
+	const item = items[index];
+	if (!item || item.parentId === null) return items;
+
+	const originalParentId = item.parentId;
+
+	const adoptees: string[] = [];
+	for (let i = index + 1; i < items.length; i++) {
+		if (items[i].parentId === originalParentId) {
+			adoptees.push(items[i].id);
+		} else {
+			break;
+		}
+	}
+
+	return items.map((i) => {
+		if (i.id === id) return { ...i, parentId: null };
+		if (adoptees.includes(i.id)) return { ...i, parentId: id };
+		return i;
+	});
+}
+
+export function parseChecklist(text: string): ChecklistItem[] {
+	if (!text.trim()) return [{ id: generateId(), text: '', checked: false, parentId: null }];
+
+	let lastTopLevelId: string | null = null;
+	return text.split('\n').map((line) => {
+		if (line.startsWith('  - [x] ')) {
+			return { id: generateId(), text: line.slice(8), checked: true, parentId: lastTopLevelId };
+		}
+		if (line.startsWith('  - [ ] ')) {
+			return { id: generateId(), text: line.slice(8), checked: false, parentId: lastTopLevelId };
+		}
+		const item: ChecklistItem = { id: generateId(), text: '', checked: false, parentId: null };
+		if (line.startsWith('- [x] ')) {
+			item.text = line.slice(6);
+			item.checked = true;
+		} else if (line.startsWith('- [ ] ')) {
+			item.text = line.slice(6);
+		} else {
+			item.text = line;
+		}
+		lastTopLevelId = item.id;
+		return item;
+	});
+}
+
+export function serializeChecklist(items: ChecklistItem[]): string {
+	const topLevel = items.filter((i) => i.parentId === null);
+	const childMap = new Map<string, ChecklistItem[]>();
+	for (const item of items) {
+		if (item.parentId) {
+			const siblings = childMap.get(item.parentId) ?? [];
+			siblings.push(item);
+			childMap.set(item.parentId, siblings);
+		}
+	}
+
+	const lines: string[] = [];
+	for (const parent of topLevel) {
+		lines.push(`- [${parent.checked ? 'x' : ' '}] ${parent.text}`);
+		const children = childMap.get(parent.id) ?? [];
+		for (const child of children) {
+			lines.push(`  - [${child.checked ? 'x' : ' '}] ${child.text}`);
+		}
+	}
+	return lines.join('\n');
+}
+
+function escapeHtml(text: string): string {
+	return text
+		.replace(/&/g, '&amp;')
+		.replace(/</g, '&lt;')
+		.replace(/>/g, '&gt;')
+		.replace(/"/g, '&quot;');
+}
+
+const URL_REGEX = /(?:https?:\/\/|www\.)[^\s<]+[^\s<.,;:!?)'"}\]]/g;
+
+export function linkifyText(text: string): string {
+	if (!text) return '';
+
+	const matches: { index: number; match: string; href: string }[] = [];
+	let m: RegExpExecArray | null;
+	const regex = new RegExp(URL_REGEX.source, 'g');
+
+	while ((m = regex.exec(text)) !== null) {
+		const match = m[0];
+		const href = match.startsWith('www.') ? `https://${match}` : match;
+		matches.push({ index: m.index, match, href });
+	}
+
+	if (matches.length === 0) return escapeHtml(text);
+
+	let result = '';
+	let lastIndex = 0;
+	for (const { index, match, href } of matches) {
+		result += escapeHtml(text.slice(lastIndex, index));
+		result += `<a href="${escapeHtml(href)}" target="_blank" rel="noopener noreferrer" class="checklist-link">${escapeHtml(match)}</a>`;
+		lastIndex = index + match.length;
+	}
+	result += escapeHtml(text.slice(lastIndex));
+	return result;
+}
+
+export function unlinkifyHtml(html: string): string {
+	if (!html) return '';
+	return html
+		.replace(/<[^>]*>/g, '')
+		.replace(/&nbsp;/g, ' ')
+		.replace(/&amp;/g, '&')
+		.replace(/&lt;/g, '<')
+		.replace(/&gt;/g, '>')
+		.replace(/&quot;/g, '"');
+}

src/lib/utils/colors.test.ts

@@ -0,0 +1,25 @@
+import { describe, it, expect } from 'vitest';
+import { getNoteColor, NOTE_COLORS, NOTE_COLORS_DARK } from '$lib/utils/colors.js';
+
+describe('getNoteColor', () => {
+	it('returns light color when isDark is false', () => {
+		expect(getNoteColor('default', false)).toBe('#faf5eb');
+		expect(getNoteColor('coral', false)).toBe('#faafa8');
+	});
+
+	it('returns dark color when isDark is true', () => {
+		expect(getNoteColor('default', true)).toBe('#2a2520');
+		expect(getNoteColor('coral', true)).toBe('#4a2522');
+	});
+
+	it('returns default color for unknown color name', () => {
+		expect(getNoteColor('unknown' as any, false)).toBe('#faf5eb');
+		expect(getNoteColor('unknown' as any, true)).toBe('#2a2520');
+	});
+
+	it('has matching keys in light and dark color maps', () => {
+		const lightKeys = Object.keys(NOTE_COLORS).sort();
+		const darkKeys = Object.keys(NOTE_COLORS_DARK).sort();
+		expect(lightKeys).toEqual(darkKeys);
+	});
+});

src/lib/utils/colors.ts

@@ -15,6 +15,26 @@ export const NOTE_COLORS: Record<NoteColor, { bg: string; label: string }> = {
 	chalk: { bg: '#efeff1', label: 'Chalk' }
 };
 
+export const NOTE_COLORS_DARK: Record<NoteColor, { bg: string; label: string }> = {
+	default: { bg: '#2a2520', label: 'Default' },
+	coral: { bg: '#4a2522', label: 'Coral' },
+	peach: { bg: '#4a3020', label: 'Peach' },
+	sand: { bg: '#3a3520', label: 'Sand' },
+	mint: { bg: '#2a3a22', label: 'Mint' },
+	sage: { bg: '#223a32', label: 'Sage' },
+	fog: { bg: '#222e3a', label: 'Fog' },
+	storm: { bg: '#1e2a35', label: 'Storm' },
+	dusk: { bg: '#352540', label: 'Dusk' },
+	blossom: { bg: '#3a2830', label: 'Blossom' },
+	clay: { bg: '#302e28', label: 'Clay' },
+	chalk: { bg: '#2e2e30', label: 'Chalk' }
+};
+
+export function getNoteColor(color: NoteColor, isDark: boolean): string {
+	const map = isDark ? NOTE_COLORS_DARK : NOTE_COLORS;
+	return (map[color] ?? map.default).bg;
+}
+
 export const COLOR_OPTIONS = Object.entries(NOTE_COLORS).map(([value, { label }]) => ({
 	value: value as NoteColor,
 	label

src/lib/utils/content-merge.test.ts

@@ -0,0 +1,105 @@
+import { describe, it, expect } from 'vitest';
+import { mergeContent, mergeContentTwoWay } from './content-merge.js';
+
+describe('mergeContent (3-way)', () => {
+	it('should return remote when local is unchanged', () => {
+		const base = '- [ ] Milk\n- [ ] Bread';
+		const local = '- [ ] Milk\n- [ ] Bread';
+		const remote = '- [x] Milk\n- [ ] Bread';
+
+		expect(mergeContent(base, local, remote)).toBe('- [x] Milk\n- [ ] Bread');
+	});
+
+	it('should return local when remote is unchanged', () => {
+		const base = '- [ ] Milk\n- [ ] Bread';
+		const local = '- [x] Milk\n- [ ] Bread';
+		const remote = '- [ ] Milk\n- [ ] Bread';
+
+		expect(mergeContent(base, local, remote)).toBe('- [x] Milk\n- [ ] Bread');
+	});
+
+	it('should merge when User A checks an item and User B adds an item', () => {
+		const base = '- [ ] Milk\n- [ ] Bread\n- [ ] Eggs';
+		const local = '- [x] Milk\n- [ ] Bread\n- [ ] Eggs'; // User A checks Milk
+		const remote = '- [ ] Milk\n- [ ] Bread\n- [ ] Eggs\n- [ ] Butter'; // User B adds Butter
+
+		const result = mergeContent(base, local, remote);
+		expect(result).toBe('- [x] Milk\n- [ ] Bread\n- [ ] Eggs\n- [ ] Butter');
+	});
+
+	it('should merge when both users check different items', () => {
+		const base = '- [ ] Milk\n- [ ] Bread\n- [ ] Eggs';
+		const local = '- [x] Milk\n- [ ] Bread\n- [ ] Eggs'; // User A checks Milk
+		const remote = '- [ ] Milk\n- [x] Bread\n- [ ] Eggs'; // User B checks Bread
+
+		const result = mergeContent(base, local, remote);
+		expect(result).toBe('- [x] Milk\n- [x] Bread\n- [ ] Eggs');
+	});
+
+	it('should LWW (prefer remote) when both users edit the same line', () => {
+		const base = '- [ ] Milk\n- [ ] Bread';
+		const local = '- [ ] Whole Milk\n- [ ] Bread'; // User A renames Milk
+		const remote = '- [x] Milk\n- [ ] Bread'; // User B checks Milk
+
+		const result = mergeContent(base, local, remote);
+		// Both changed line 1 — conflict resolved by preferring remote
+		expect(result).toBe('- [x] Milk\n- [ ] Bread');
+	});
+
+	it('should handle line additions by both sides', () => {
+		const base = '- [ ] Milk';
+		const local = '- [ ] Milk\n- [ ] Bread'; // User A adds Bread at end
+		const remote = '- [ ] Eggs\n- [ ] Milk'; // User B adds Eggs at beginning
+
+		const result = mergeContent(base, local, remote);
+		// Both additions should be preserved
+		expect(result).toContain('- [ ] Milk');
+		expect(result).toContain('- [ ] Bread');
+		expect(result).toContain('- [ ] Eggs');
+	});
+
+	it('should handle line deletion by one side', () => {
+		const base = '- [ ] Milk\n- [ ] Bread\n- [ ] Eggs';
+		const local = '- [ ] Milk\n- [ ] Eggs'; // User A removes Bread
+		const remote = '- [ ] Milk\n- [ ] Bread\n- [ ] Eggs'; // User B unchanged
+
+		const result = mergeContent(base, local, remote);
+		expect(result).toBe('- [ ] Milk\n- [ ] Eggs');
+	});
+
+	it('should work with non-checklist markdown (prose paragraphs)', () => {
+		const base = '# Shopping\n\nBuy groceries today.\n\n## Notes\n\nNothing special.';
+		const local = '# Shopping\n\nBuy groceries today.\n\n## Notes\n\nRemember coupons.'; // User A edits notes
+		const remote = '# Shopping List\n\nBuy groceries today.\n\n## Notes\n\nNothing special.'; // User B edits title
+
+		const result = mergeContent(base, local, remote);
+		expect(result).toContain('# Shopping List');
+		expect(result).toContain('Remember coupons.');
+	});
+
+	it('should handle empty content', () => {
+		expect(mergeContent('', '', '')).toBe('');
+		expect(mergeContent('', 'hello', '')).toBe('hello');
+		expect(mergeContent('', '', 'hello')).toBe('hello');
+	});
+
+	it('should return remote when local equals remote', () => {
+		const content = '- [ ] Milk\n- [ ] Bread';
+		expect(mergeContent('old', content, content)).toBe(content);
+	});
+});
+
+describe('mergeContentTwoWay', () => {
+	it('should return remote when both are identical', () => {
+		expect(mergeContentTwoWay('hello', 'hello')).toBe('hello');
+	});
+
+	it('should attempt merge when contents differ', () => {
+		const local = '- [x] Milk\n- [ ] Bread';
+		const remote = '- [ ] Milk\n- [ ] Bread\n- [ ] Eggs';
+
+		const result = mergeContentTwoWay(local, remote);
+		// Without a base, conflict resolution prefers remote
+		expect(result).toContain('- [ ] Bread');
+	});
+});

src/lib/utils/content-merge.ts

@@ -0,0 +1,88 @@
+import { diff3Merge } from 'node-diff3';
+
+/**
+ * Resolve a conflict region by comparing each line against the base.
+ * If only one side changed a line, take that change.
+ * If both sides changed the same line, prefer remote (LWW).
+ * Handles different-length regions by appending extra lines.
+ */
+function resolveConflict(
+	aLines: string[],
+	oLines: string[],
+	bLines: string[]
+): string[] {
+	const maxLen = Math.max(aLines.length, bLines.length, oLines.length);
+	const result: string[] = [];
+
+	for (let i = 0; i < maxLen; i++) {
+		const a = i < aLines.length ? aLines[i] : undefined;
+		const o = i < oLines.length ? oLines[i] : undefined;
+		const b = i < bLines.length ? bLines[i] : undefined;
+
+		const aChanged = a !== o;
+		const bChanged = b !== o;
+
+		if (aChanged && !bChanged && a !== undefined) {
+			// Only local changed this line — take local
+			result.push(a);
+		} else if (bChanged && !aChanged && b !== undefined) {
+			// Only remote changed this line — take remote
+			result.push(b);
+		} else if (aChanged && bChanged) {
+			// Both changed — LWW: prefer remote
+			if (b !== undefined) result.push(b);
+			// If remote deleted (undefined) but local has it, skip (remote wins)
+		} else {
+			// Neither changed, or both are the same as base
+			if (o !== undefined) result.push(o);
+			else if (b !== undefined) result.push(b);
+			else if (a !== undefined) result.push(a);
+		}
+	}
+
+	return result;
+}
+
+/**
+ * 3-way line-level merge for note content.
+ * Takes a base (common ancestor), local (incoming), and remote (server current).
+ * For conflict regions, resolves line-by-line: if only one side changed a line,
+ * take that change. If both changed the same line, prefer remote (LWW).
+ */
+export function mergeContent(base: string, local: string, remote: string): string {
+	// If any two are identical, short-circuit
+	if (local === remote) return remote;
+	if (local === base) return remote;
+	if (remote === base) return local;
+
+	const baseLines = base.split('\n');
+	const localLines = local.split('\n');
+	const remoteLines = remote.split('\n');
+
+	const regions = diff3Merge(localLines, baseLines, remoteLines);
+	const merged: string[] = [];
+
+	for (const region of regions) {
+		if (region.ok) {
+			merged.push(...region.ok);
+		} else if (region.conflict) {
+			merged.push(...resolveConflict(
+				region.conflict.a,
+				region.conflict.o,
+				region.conflict.b
+			));
+		}
+	}
+
+	return merged.join('\n');
+}
+
+/**
+ * 2-way merge fallback when no base is available.
+ * Uses an empty string as the base, so all lines from both sides appear
+ * as additions. For conflicts (same region), prefers remote.
+ */
+export function mergeContentTwoWay(local: string, remote: string): string {
+	if (local === remote) return remote;
+	return mergeContent('', local, remote);
+}

src/lib/utils/theme.svelte.ts

@@ -0,0 +1,42 @@
+import { browser } from '$app/environment';
+
+const LIGHT_THEME_COLOR = '#f0e6d3';
+const DARK_THEME_COLOR = '#1a1715';
+
+let darkMode = $state(false);
+
+export function getIsDarkMode(): boolean {
+	return darkMode;
+}
+
+export function applyTheme(theme: 'system' | 'light' | 'dark'): void {
+	if (!browser) return;
+
+	// Validate input
+	if (theme !== 'system' && theme !== 'light' && theme !== 'dark') {
+		theme = 'system';
+	}
+
+	// Resolve system preference
+	let resolved = theme;
+	if (theme === 'system') {
+		const prefersDark =
+			typeof window.matchMedia === 'function' &&
+			window.matchMedia('(prefers-color-scheme: dark)').matches;
+		resolved = prefersDark ? 'dark' : 'light';
+	}
+
+	const isDark = resolved === 'dark';
+	darkMode = isDark;
+
+	if (isDark) {
+		document.documentElement.setAttribute('data-theme', 'dark');
+	} else {
+		document.documentElement.removeAttribute('data-theme');
+	}
+
+	const meta = document.querySelector('meta[name="theme-color"]');
+	if (meta) {
+		meta.setAttribute('content', isDark ? DARK_THEME_COLOR : LIGHT_THEME_COLOR);
+	}
+}

src/lib/utils/theme.test.ts

@@ -0,0 +1,70 @@
+// @vitest-environment jsdom
+import { describe, it, expect, beforeEach, vi } from 'vitest';
+
+// Mock $app/environment
+vi.mock('$app/environment', () => ({ browser: true }));
+
+describe('applyTheme', () => {
+	let applyTheme: (theme: 'system' | 'light' | 'dark') => void;
+
+	beforeEach(async () => {
+		// Reset DOM
+		document.documentElement.removeAttribute('data-theme');
+		const meta = document.querySelector('meta[name="theme-color"]');
+		if (meta) meta.remove();
+		const metaEl = document.createElement('meta');
+		metaEl.setAttribute('name', 'theme-color');
+		metaEl.setAttribute('content', '#f0e6d3');
+		document.head.appendChild(metaEl);
+
+		// Reset module state
+		vi.resetModules();
+		const mod = await import('$lib/utils/theme.svelte.js');
+		applyTheme = mod.applyTheme;
+	});
+
+	it('sets data-theme="dark" for dark mode', () => {
+		applyTheme('dark');
+		expect(document.documentElement.getAttribute('data-theme')).toBe('dark');
+	});
+
+	it('removes data-theme for light mode', () => {
+		document.documentElement.setAttribute('data-theme', 'dark');
+		applyTheme('light');
+		expect(document.documentElement.hasAttribute('data-theme')).toBe(false);
+	});
+
+	it('updates meta theme-color for dark mode', () => {
+		applyTheme('dark');
+		const meta = document.querySelector('meta[name="theme-color"]');
+		expect(meta?.getAttribute('content')).toBe('#1a1715');
+	});
+
+	it('updates meta theme-color for light mode', () => {
+		applyTheme('dark');
+		applyTheme('light');
+		const meta = document.querySelector('meta[name="theme-color"]');
+		expect(meta?.getAttribute('content')).toBe('#f0e6d3');
+	});
+
+	it('falls back to system for unknown values', () => {
+		// matchMedia returns false by default in jsdom → resolves to light
+		applyTheme('invalid' as 'system' | 'light' | 'dark');
+		expect(document.documentElement.hasAttribute('data-theme')).toBe(false);
+	});
+
+	it('resolves system preference to dark when prefers-color-scheme is dark', () => {
+		Object.defineProperty(window, 'matchMedia', {
+			writable: true,
+			value: vi.fn().mockImplementation((query: string) => ({
+				matches: query === '(prefers-color-scheme: dark)',
+				media: query,
+				addEventListener: vi.fn(),
+				removeEventListener: vi.fn(),
+				dispatchEvent: vi.fn()
+			}))
+		});
+		applyTheme('system');
+		expect(document.documentElement.getAttribute('data-theme')).toBe('dark');
+	});
+});

src/lib/utils/tooltip.ts

@@ -0,0 +1,83 @@
+/**
+ * Custom tooltip action — drop-in replacement for title attributes.
+ * Usage: <button use:tooltip={"Label"}>
+ * Or with options: <button use:tooltip={{ text: "Label", position: "bottom" }}>
+ */
+
+export type TooltipPosition = 'top' | 'bottom';
+
+interface TooltipOptions {
+	text: string;
+	position?: TooltipPosition;
+}
+
+function parseOptions(value: string | TooltipOptions): { text: string; position: TooltipPosition } {
+	if (typeof value === 'string') return { text: value, position: 'top' };
+	return { text: value.text, position: value.position ?? 'top' };
+}
+
+export function tooltip(node: HTMLElement, value: string | TooltipOptions) {
+	let opts = parseOptions(value);
+	let el: HTMLDivElement | null = null;
+	let timeout: ReturnType<typeof setTimeout> | undefined;
+
+	function show() {
+		timeout = setTimeout(() => {
+			if (!opts.text) return;
+			el = document.createElement('div');
+			el.className = 'tooltip-popup';
+			el.textContent = opts.text;
+			document.body.appendChild(el);
+			position();
+		}, 400);
+	}
+
+	function position() {
+		if (!el) return;
+		const rect = node.getBoundingClientRect();
+		const tipRect = el.getBoundingClientRect();
+
+		let top: number;
+		if (opts.position === 'bottom') {
+			top = rect.bottom + 6;
+		} else {
+			top = rect.top - tipRect.height - 6;
+		}
+
+		let left = rect.left + rect.width / 2 - tipRect.width / 2;
+		// Clamp to viewport
+		left = Math.max(8, Math.min(left, window.innerWidth - tipRect.width - 8));
+
+		el.style.top = `${top}px`;
+		el.style.left = `${left}px`;
+		el.classList.add('tooltip-visible');
+	}
+
+	function hide() {
+		clearTimeout(timeout);
+		if (el) {
+			el.remove();
+			el = null;
+		}
+	}
+
+	node.addEventListener('mouseenter', show);
+	node.addEventListener('mouseleave', hide);
+	node.addEventListener('pointerdown', hide);
+	// Remove native title to prevent double tooltip
+	const nativeTitle = node.getAttribute('title');
+	if (nativeTitle) node.removeAttribute('title');
+
+	return {
+		update(newValue: string | TooltipOptions) {
+			opts = parseOptions(newValue);
+		},
+		destroy() {
+			hide();
+			node.removeEventListener('mouseenter', show);
+			node.removeEventListener('mouseleave', hide);
+			node.removeEventListener('pointerdown', hide);
+			if (nativeTitle) node.setAttribute('title', nativeTitle);
+		}
+	};
+}

src/routes/(app)/settings/about/+page.svelte

@@ -35,8 +35,8 @@
 				href="https://bretzel.app"
 				target="_blank"
 				rel="noopener noreferrer"
-				class="text-[var(--primary)] underline hover:text-[var(--primary-hover)]">Bretzel</a
-			> family of apps.
+				class="text-[var(--primary)] underline hover:text-[var(--primary-hover)]">bretzel.app</a
+			> universe.
 		</p>
 	</section>
 

src/routes/(app)/settings/preferences/+page.svelte

@@ -9,6 +9,22 @@
 <div class="space-y-8">
 	<h2 class="text-xl font-bold text-[var(--text)]">Preferences</h2>
 
+	<!-- Theme -->
+	<div class="space-y-2">
+		<span class="block text-sm font-medium text-[var(--text)]">Theme</span>
+		<div class="flex gap-1" role="group" aria-label="Theme">
+			{#each [['system', 'System'], ['light', 'Light'], ['dark', 'Dark']] as [value, label]}
+				<button
+					onclick={() => updatePreference('theme', value as 'system' | 'light' | 'dark')}
+					class="rounded-sm border px-4 py-2 text-sm transition-colors {prefs.theme === value ? 'border-[var(--primary)] bg-[var(--primary)]/15 text-[var(--primary)] font-medium' : 'border-[var(--border-subtle)] text-[var(--text)] hover:border-[var(--primary)]'}"
+					data-testid="pref-theme-{value}"
+				>
+					{label}
+				</button>
+			{/each}
+		</div>
+	</div>
+
 	<!-- Default note mode -->
 	<div class="space-y-2">
 		<span class="block text-sm font-medium text-[var(--text)]">Default note mode</span>
@@ -64,4 +80,42 @@
 		/>
 		<label for="sidebar-default" class="text-sm text-[var(--text)]">Start with sidebar collapsed</label>
 	</div>
+
+	<!-- Email notifications -->
+	<div class="space-y-3">
+		<span class="block text-sm font-medium text-[var(--text)]">Email notifications</span>
+		<div class="flex items-center gap-3">
+			<input
+				type="checkbox"
+				id="notify-on-share"
+				checked={prefs.notifyOnShare}
+				onchange={() => updatePreference('notifyOnShare', !prefs.notifyOnShare)}
+				class="h-4 w-4 rounded-sm"
+				data-testid="pref-notify-on-share"
+			/>
+			<label for="notify-on-share" class="text-sm text-[var(--text)]">Email me when someone shares a note with me</label>
+		</div>
+		<div class="flex items-center gap-3">
+			<input
+				type="checkbox"
+				id="notify-on-collab-removed"
+				checked={prefs.notifyOnCollabRemoved}
+				onchange={() => updatePreference('notifyOnCollabRemoved', !prefs.notifyOnCollabRemoved)}
+				class="h-4 w-4 rounded-sm"
+				data-testid="pref-notify-on-collab-removed"
+			/>
+			<label for="notify-on-collab-removed" class="text-sm text-[var(--text)]">Email me when I'm removed from a shared note</label>
+		</div>
+		<div class="flex items-center gap-3">
+			<input
+				type="checkbox"
+				id="notify-on-note-deleted"
+				checked={prefs.notifyOnNoteDeleted}
+				onchange={() => updatePreference('notifyOnNoteDeleted', !prefs.notifyOnNoteDeleted)}
+				class="h-4 w-4 rounded-sm"
+				data-testid="pref-notify-on-note-deleted"
+			/>
+			<label for="notify-on-note-deleted" class="text-sm text-[var(--text)]">Email me when a shared note I have access to is deleted</label>
+		</div>
+	</div>
 </div>

src/routes/(app)/settings/users/+page.svelte

@@ -70,9 +70,16 @@
 			const res = await fetch(`/api/admin/users/${userId}`, { method: 'DELETE' });
 			if (res.ok) {
 				users = users.filter((u) => u.id !== userId);
+				createMsg = 'User deleted';
+				createError = false;
+			} else {
+				const d = await res.json().catch(() => ({}));
+				createMsg = d.message || 'Failed to delete user';
+				createError = true;
 			}
 		} catch {
-			// ignore
+			createMsg = 'Connection error';
+			createError = true;
 		}
 	}
 
@@ -167,7 +174,10 @@
 
 		<div class="space-y-3">
 			{#each users as user (user.id)}
-				<div class="flex flex-col gap-2 rounded-sm border border-[var(--border-subtle)] p-4 sm:flex-row sm:items-center sm:justify-between">
+				<div
+					class="flex flex-col gap-2 rounded-sm border border-[var(--border-subtle)] p-4 sm:flex-row sm:items-center sm:justify-between"
+					data-testid="user-row-{user.id}"
+				>
 					<div class="min-w-0">
 						<p class="truncate font-medium text-[var(--text)]">
 							{user.displayName || user.email}
@@ -195,6 +205,7 @@
 							</button>
 							<button
 								onclick={() => deleteUser(user.id)}
+								data-testid="delete-user-btn-{user.id}"
 								class="rounded-sm px-3 py-1 text-xs text-[var(--destructive)] hover:bg-[var(--error-bg)]"
 							>
 								Delete

src/routes/(share)/+error.svelte

@@ -0,0 +1,17 @@
+<script lang="ts">
+	import { page } from '$app/state';
+</script>
+
+<svelte:head>
+	<title>Not Found - Crumbs</title>
+</svelte:head>
+
+<div class="w-full max-w-sm rounded-sm border border-[var(--border)] bg-[var(--bg-surface)] p-8 text-center">
+	<img src="/favicon.svg" alt="Crumbs" class="mx-auto h-12 w-12" />
+	<h1 class="mt-4 font-['Press_Start_2P'] text-xl text-[var(--primary)]">
+		{page.status}
+	</h1>
+	<p class="mt-4 text-sm text-[var(--text-muted)]">
+		{page.error?.message ?? 'This shared note does not exist or has been removed.'}
+	</p>
+</div>

src/routes/(share)/+layout.svelte

@@ -0,0 +1,7 @@
+<script lang="ts">
+	let { children } = $props();
+</script>
+
+<div class="flex min-h-screen items-center justify-center bg-[var(--bg-base)] text-[var(--text)]">
+	{@render children()}
+</div>

src/routes/(share)/s/[token]/+page.server.ts

@@ -0,0 +1,28 @@
+import { error } from '@sveltejs/kit';
+import type { PageServerLoad } from './$types.js';
+import { getSharedNote } from '$lib/server/shares-service.js';
+import { checkIpRateLimit } from '$lib/server/ip-rate-limit.js';
+import { db } from '$lib/server/db/index.js';
+
+export const load: PageServerLoad = async ({ params, getClientAddress }) => {
+	const ip = getClientAddress();
+	if (!checkIpRateLimit(ip)) {
+		throw error(429, 'Too many requests');
+	}
+
+	const data = getSharedNote(db, params.token);
+	if (!data) {
+		throw error(404, 'This shared note does not exist or has been removed.');
+	}
+
+	return {
+		token: params.token,
+		title: data.title,
+		content: data.content,
+		checklistMode: data.checklistMode,
+		color: data.color,
+		attachments: data.attachments,
+		createdAt: data.createdAt,
+		updatedAt: data.updatedAt
+	};
+};

src/routes/(share)/s/[token]/+page.svelte

@@ -0,0 +1,130 @@
+<script lang="ts">
+	import { NOTE_COLORS } from '$lib/utils/colors.js';
+	import { renderMarkdown } from '$lib/utils/markdown.js';
+	import { linkifyText } from '$lib/utils/checklist.js';
+	import type { NoteColor, PublicAttachment } from '$lib/types/index.js';
+
+	interface ChecklistItem {
+		text: string;
+		checked: boolean;
+		indented: boolean;
+	}
+
+	const { data } = $props();
+
+	const noteColor = data.color as NoteColor;
+	const bgColor = NOTE_COLORS[noteColor]?.bg ?? NOTE_COLORS.default.bg;
+
+	const renderedContent = renderMarkdown(data.content);
+
+	const checklistItems: ChecklistItem[] = data.checklistMode
+		? data.content
+				.split('\n')
+				.filter((l: string) => l.trim())
+				.map((line: string) => {
+					const indented = line.startsWith('  - [');
+					return {
+						text: line.replace(/^ {0,2}- \[[ x]\] /, ''),
+						checked: /^ {0,2}- \[x\] /.test(line),
+						indented
+					};
+				})
+		: [];
+
+	const activeChecklistItems = checklistItems.filter((i) => !i.checked);
+	const doneChecklistItems = checklistItems.filter((i) => i.checked);
+	const sortedChecklistItems = [...activeChecklistItems, ...doneChecklistItems];
+
+	const imageAttachments = (data.attachments as PublicAttachment[]).filter((a) =>
+		a.mimeType.startsWith('image/')
+	);
+
+	function formatDate(date: Date | string) {
+		return new Date(date).toLocaleDateString('en-US', {
+			year: 'numeric',
+			month: 'short',
+			day: 'numeric'
+		});
+	}
+</script>
+
+<svelte:head>
+	<title>{data.title || 'Shared Note'} — Crumbs</title>
+	<meta name="description" content={data.content.slice(0, 160)} />
+</svelte:head>
+
+<div class="mx-4 w-full max-w-2xl py-10">
+	<article
+		class="rounded-sm border border-[var(--border-subtle)] shadow-[var(--card-shadow)] overflow-hidden"
+		style="background-color: {bgColor}"
+		data-testid="shared-note"
+	>
+		<div class="px-6 py-5">
+			{#if data.title}
+				<h1 class="mb-4 text-xl font-semibold text-[var(--text)]" data-testid="shared-note-title">
+					{data.title}
+				</h1>
+			{/if}
+
+			{#if data.checklistMode && checklistItems.length > 0}
+				<ul class="space-y-2" data-testid="shared-note-checklist">
+					{#each sortedChecklistItems as item}
+						<li
+							class="flex items-start gap-2 text-sm {item.indented ? 'pl-4 ' : ''}{item.checked
+								? 'text-[var(--text-muted)] line-through'
+								: 'text-[var(--text)]'}"
+							data-testid={item.indented ? 'shared-checklist-child' : undefined}
+						>
+							<input
+								type="checkbox"
+								checked={item.checked}
+								disabled
+								class="mt-0.5 h-3.5 w-3.5 shrink-0 rounded border-[var(--border-subtle)]"
+							/>
+							<span class="break-words min-w-0">{@html linkifyText(item.text)}</span>
+						</li>
+					{/each}
+				</ul>
+			{:else if data.content}
+				<div
+					class="prose prose-sm max-w-none text-[var(--text)]"
+					data-testid="shared-note-content"
+				>
+					{@html renderedContent}
+				</div>
+			{/if}
+
+			{#if imageAttachments.length > 0}
+				<div class="mt-4 grid grid-cols-2 gap-2" data-testid="shared-note-images">
+					{#each imageAttachments as attachment}
+						<img
+							src="/api/shared/{data.token}/attachment/{attachment.id}"
+							alt={attachment.filename}
+							class="w-full rounded-sm border border-[var(--border-subtle)]"
+							loading="lazy"
+						/>
+					{/each}
+				</div>
+			{/if}
+		</div>
+
+		<div
+			class="flex items-center justify-between border-t border-[var(--border-subtle)] px-6 py-3"
+		>
+			<span class="text-xs text-[var(--text-muted)]">
+				{formatDate(data.updatedAt)}
+			</span>
+		</div>
+	</article>
+
+	<div class="mt-6 text-center">
+		<a
+			href="https://crumbs.bretzel.app"
+			target="_blank"
+			rel="noopener noreferrer"
+			class="font-['Press_Start_2P'] text-[8px] tracking-wider text-[var(--text-muted)] hover:text-[var(--primary)] transition-colors"
+		>
+			POWERED BY CRUMBS
+		</a>
+	</div>
+</div>

src/routes/+layout.svelte

@@ -1,7 +1,59 @@
 <script lang="ts">
 	import '../app.css';
+	import { onMount, onDestroy } from 'svelte';
+	import { pwaInfo } from 'virtual:pwa-info';
+	import { browser } from '$app/environment';
+	import { getPreferences } from '$lib/stores/preferences.svelte.js';
+	import { applyTheme } from '$lib/utils/theme.svelte.js';
 
 	let { children } = $props();
+	let mediaQuery: MediaQueryList | undefined;
+	let systemListener: ((e: MediaQueryListEvent) => void) | undefined;
+
+	const prefs = $derived(getPreferences());
+
+	onMount(async () => {
+		if (pwaInfo) {
+			const { registerSW } = await import('virtual:pwa-register');
+			registerSW({
+				immediate: true,
+				onRegistered(r: ServiceWorkerRegistration | undefined) {
+					console.log('SW Registered:', r);
+				},
+				onRegisterError(error: Error) {
+					console.log('SW registration error', error);
+				}
+			});
+		}
+	});
+
+	$effect(() => {
+		if (!browser) return;
+		const theme = prefs.theme ?? 'system';
+		applyTheme(theme);
+
+		// Listen for system preference changes when in system mode
+		if (systemListener && mediaQuery) {
+			mediaQuery.removeEventListener('change', systemListener);
+		}
+		if (theme === 'system') {
+			mediaQuery = window.matchMedia('(prefers-color-scheme: dark)');
+			systemListener = () => applyTheme('system');
+			mediaQuery.addEventListener('change', systemListener);
+		}
+	});
+
+	onDestroy(() => {
+		if (systemListener && mediaQuery) {
+			mediaQuery.removeEventListener('change', systemListener);
+		}
+	});
+
+	const webManifest = $derived(pwaInfo ? pwaInfo.webManifest.linkTag : '');
 </script>
 
+<svelte:head>
+	{@html webManifest}
+</svelte:head>
+
 {@render children()}

src/routes/api/admin/users/+server.ts

@@ -2,6 +2,7 @@ import { json, error } from '@sveltejs/kit';
 import type { RequestHandler } from './$types.js';
 import { requireAdmin } from '$lib/server/api-utils.js';
 import { listUsers, createUser } from '$lib/server/auth.js';
+import { isEmailConfigured, sendWelcomeEmail } from '$lib/server/email.js';
 
 export const GET: RequestHandler = async (event) => {
 	requireAdmin(event);
@@ -21,5 +22,12 @@ export const POST: RequestHandler = async ({ request, ...event }) => {
 	}
 
 	const user = await createUser(email, displayName || email.split('@')[0], password || null, role || 'user');
+
+	// Send welcome email (fire-and-forget)
+	if (isEmailConfigured() && user.email) {
+		const origin = process.env.ORIGIN || 'http://localhost:3000';
+		sendWelcomeEmail(user.email, user.displayName, origin).catch(() => {});
+	}
+
 	return json(user, { status: 201 });
 };

src/routes/api/admin/users/[id]/+server.ts

@@ -2,6 +2,7 @@ import { json, error } from '@sveltejs/kit';
 import type { RequestHandler } from './$types.js';
 import { requireAdmin } from '$lib/server/api-utils.js';
 import { getUser, deleteUser, updateUserRole, resetPassword, revokeAllSessions } from '$lib/server/auth.js';
+import { isEmailConfigured, sendPasswordResetEmail, sendRoleChangedEmail } from '$lib/server/email.js';
 
 export const PATCH: RequestHandler = async ({ params, request, ...event }) => {
 	const admin = requireAdmin(event);
@@ -11,12 +12,19 @@ export const PATCH: RequestHandler = async ({ params, request, ...event }) => {
 	const user = getUser(userId);
 	if (!user) throw error(404, 'User not found');
 
+	const origin = process.env.ORIGIN || 'http://localhost:3000';
+
 	if (body.role !== undefined) {
 		// Prevent admin from demoting themselves
 		if (userId === admin.id && body.role !== 'admin') {
 			throw error(400, 'Cannot change your own role');
 		}
 		updateUserRole(userId, body.role);
+
+		// Notify user of role change (fire-and-forget)
+		if (isEmailConfigured() && user.email) {
+			sendRoleChangedEmail(user.email, user.displayName, body.role, origin).catch(() => {});
+		}
 	}
 
 	if (body.newPassword !== undefined) {
@@ -24,6 +32,11 @@ export const PATCH: RequestHandler = async ({ params, request, ...event }) => {
 			throw error(400, 'Password must be at least 8 characters');
 		}
 		await resetPassword(userId, body.newPassword);
+
+		// Notify user of password reset (fire-and-forget)
+		if (isEmailConfigured() && user.email) {
+			sendPasswordResetEmail(user.email, user.displayName, origin).catch(() => {});
+		}
 	}
 
 	if (body.revokeSessions) {

src/routes/api/auth/account/+server.ts

@@ -2,6 +2,7 @@ import { json, error } from '@sveltejs/kit';
 import type { RequestHandler } from './$types.js';
 import { getUserId } from '$lib/server/api-utils.js';
 import { verifyPassword, deleteUser, deleteSession, getUser } from '$lib/server/auth.js';
+import { isEmailConfigured, sendAccountDeletedEmail } from '$lib/server/email.js';
 
 export const DELETE: RequestHandler = async ({ request, cookies, ...event }) => {
 	const userId = getUserId(event);
@@ -17,6 +18,9 @@ export const DELETE: RequestHandler = async ({ request, cookies, ...event }) =>
 		if (!verified) throw error(401, 'Invalid password');
 	}
 
+	// Capture email/name before deletion
+	const { email: userEmail, displayName: userName } = user;
+
 	// Delete user and all associated data
 	await deleteUser(userId);
 
@@ -27,5 +31,10 @@ export const DELETE: RequestHandler = async ({ request, cookies, ...event }) =>
 		cookies.delete('session', { path: '/' });
 	}
 
+	// Send deletion confirmation email (fire-and-forget)
+	if (isEmailConfigured() && userEmail) {
+		sendAccountDeletedEmail(userEmail, userName).catch(() => {});
+	}
+
 	return json({ success: true });
 };

src/routes/api/auth/login/+server.ts

@@ -3,6 +3,9 @@ import type { RequestHandler } from './$types.js';
 import { verifyPassword, createSession } from '$lib/server/auth.js';
 import { checkRateLimit, recordLoginAttempt } from '$lib/server/rate-limit.js';
 import { db } from '$lib/server/db/index.js';
+import { users } from '$lib/server/db/schema.js';
+import { eq } from 'drizzle-orm';
+import { isEmailConfigured, sendAccountLockedEmail } from '$lib/server/email.js';
 
 export const POST: RequestHandler = async ({ request, cookies, getClientAddress }) => {
 	const ip = getClientAddress();
@@ -23,6 +26,27 @@ export const POST: RequestHandler = async ({ request, cookies, getClientAddress
 	const user = await verifyPassword(email, password);
 	if (!user) {
 		recordLoginAttempt(db, ip, email, false);
+
+		// Check if this failure just triggered a lockout — if so, notify the user
+		if (isEmailConfigured()) {
+			const newCheck = checkRateLimit(db, ip, email);
+			if (!newCheck.allowed) {
+				const retryAfterMinutes = Math.ceil((newCheck.retryAfter ?? 900) / 60);
+				const accountUser = db
+					.select({ email: users.email, displayName: users.displayName })
+					.from(users)
+					.where(eq(users.email, email))
+					.get();
+				if (accountUser?.email) {
+					sendAccountLockedEmail(
+						accountUser.email,
+						accountUser.displayName,
+						retryAfterMinutes
+					).catch(() => {});
+				}
+			}
+		}
+
 		throw error(401, 'Invalid email or password');
 	}
 

src/routes/api/auth/profile/+server.ts

@@ -1,7 +1,8 @@
 import { json, error } from '@sveltejs/kit';
 import type { RequestHandler } from './$types.js';
 import { getUserId } from '$lib/server/api-utils.js';
-import { updateUserProfile } from '$lib/server/auth.js';
+import { updateUserProfile, getUser } from '$lib/server/auth.js';
+import { isEmailConfigured, sendEmailChangedEmail } from '$lib/server/email.js';
 
 export const PUT: RequestHandler = async ({ request, ...event }) => {
 	const userId = getUserId(event);
@@ -11,6 +12,15 @@ export const PUT: RequestHandler = async ({ request, ...event }) => {
 		throw error(400, 'Email cannot be empty');
 	}
 
+	// Capture old email before update to notify on change
+	const existingUser = email !== undefined ? getUser(userId) : null;
+
 	updateUserProfile(userId, { displayName, email });
+
+	// Send notification to old email when email address changes
+	if (isEmailConfigured() && existingUser?.email && email && existingUser.email !== email) {
+		sendEmailChangedEmail(existingUser.email, existingUser.displayName, email).catch(() => {});
+	}
+
 	return json({ success: true });
 };

src/routes/api/notes/[id]/+server.ts

@@ -3,6 +3,9 @@ import type { RequestHandler } from './$types.js';
 import { db } from '$lib/server/db/index.js';
 import { getUserId, requireNoteAccess, requireNoteOwnership } from '$lib/server/api-utils.js';
 import { getNote, updateNote, deleteNote } from '$lib/server/notes-service.js';
+import { fetchCollaboratorsForNotes } from '$lib/server/collaborators.js';
+import { isEmailConfigured, sendNotePermanentlyDeletedEmail } from '$lib/server/email.js';
+import { getPreferences } from '$lib/server/preferences.js';
 
 export const GET: RequestHandler = async ({ params, ...event }) => {
 	const userId = getUserId(event);
@@ -25,8 +28,32 @@ export const DELETE: RequestHandler = async ({ params, ...event }) => {
 	const userId = getUserId(event);
 	requireNoteOwnership(db, params.id, userId);
 
+	// Fetch note and collaborators before deletion to send notifications
+	let collaboratorsToNotify: Array<{ email: string; displayName: string }> = [];
+	let noteTitle = 'Untitled';
+
+	if (isEmailConfigured()) {
+		const note = getNote(db, userId, params.id);
+		if (note) {
+			noteTitle = note.title || 'Untitled';
+			const collabMap = fetchCollaboratorsForNotes(db, [params.id]);
+			const collaborators = collabMap.get(params.id) ?? [];
+			for (const collab of collaborators) {
+				const prefs = getPreferences(db, collab.userId);
+				if (prefs.notifyOnNoteDeleted !== 'false' && collab.email) {
+					collaboratorsToNotify.push({ email: collab.email, displayName: collab.displayName });
+				}
+			}
+		}
+	}
+
 	const deleted = deleteNote(db, userId, params.id);
 	if (!deleted) throw error(404, 'Note not found');
 
+	// Notify collaborators about the deleted note (fire-and-forget)
+	for (const collab of collaboratorsToNotify) {
+		sendNotePermanentlyDeletedEmail(collab.email, collab.displayName, noteTitle).catch(() => {});
+	}
+
 	return json({ success: true });
 };

src/routes/api/notes/[id]/collaborators/+server.ts

@@ -5,6 +5,12 @@ import { addCollaborator, removeCollaborator, fetchCollaboratorsForNotes } from
 import { db } from '$lib/server/db/index.js';
 import { users, notes, noteCollaborators } from '$lib/server/db/schema.js';
 import { eq, and } from 'drizzle-orm';
+import {
+	isEmailConfigured,
+	sendShareNotification,
+	sendCollaboratorRemovedEmail
+} from '$lib/server/email.js';
+import { getPreferences } from '$lib/server/preferences.js';
 
 export const GET: RequestHandler = async ({ params, ...event }) => {
 	const userId = getUserId(event);
@@ -48,6 +54,39 @@ export const POST: RequestHandler = async ({ params, request, ...event }) => {
 
 	addCollaborator(db, params.id, targetUserId, userId);
 
+	// Send email notification (fire-and-forget)
+	if (isEmailConfigured()) {
+		const targetPrefs = getPreferences(db, targetUserId);
+		if (targetPrefs.notifyOnShare !== 'false') {
+			const target = db
+				.select({ email: users.email, displayName: users.displayName })
+				.from(users)
+				.where(eq(users.id, targetUserId))
+				.get();
+			const sharer = db
+				.select({ displayName: users.displayName })
+				.from(users)
+				.where(eq(users.id, userId))
+				.get();
+			const noteData = db
+				.select({ title: notes.title })
+				.from(notes)
+				.where(eq(notes.id, params.id))
+				.get();
+			const origin = process.env.ORIGIN || 'http://localhost:3000';
+
+			if (target?.email) {
+				sendShareNotification(
+					target.email,
+					target.displayName,
+					sharer?.displayName || 'Someone',
+					noteData?.title || 'Untitled',
+					origin
+				).catch(() => {});
+			}
+		}
+	}
+
 	const collaborators = fetchCollaboratorsForNotes(db, [params.id]);
 	return json(collaborators.get(params.id) ?? [], { status: 201 });
 };
@@ -67,7 +106,50 @@ export const DELETE: RequestHandler = async ({ params, url, ...event }) => {
 		throw error(403, 'Only the owner can remove other collaborators');
 	}
 
+	// Fetch collaborator info and note title before removal for email notification
+	let removedUserEmail: string | undefined;
+	let removedUserName: string | undefined;
+	let noteTitle: string | undefined;
+	let ownerName: string | undefined;
+
+	if (isEmailConfigured() && isOwner && targetUserId !== userId) {
+		const targetPrefs = getPreferences(db, targetUserId);
+		if (targetPrefs.notifyOnCollabRemoved !== 'false') {
+			const target = db
+				.select({ email: users.email, displayName: users.displayName })
+				.from(users)
+				.where(eq(users.id, targetUserId))
+				.get();
+			const noteData = db
+				.select({ title: notes.title })
+				.from(notes)
+				.where(eq(notes.id, params.id))
+				.get();
+			const owner = db
+				.select({ displayName: users.displayName })
+				.from(users)
+				.where(eq(users.id, userId))
+				.get();
+			removedUserEmail = target?.email ?? undefined;
+			removedUserName = target?.displayName ?? undefined;
+			noteTitle = noteData?.title ?? undefined;
+			ownerName = owner?.displayName ?? undefined;
+		}
+	}
+
 	removeCollaborator(db, params.id, targetUserId);
 
+	// Send notification to removed collaborator (fire-and-forget)
+	if (removedUserEmail) {
+		const origin = process.env.ORIGIN || 'http://localhost:3000';
+		sendCollaboratorRemovedEmail(
+			removedUserEmail,
+			removedUserName || '',
+			ownerName || 'Someone',
+			noteTitle || 'Untitled',
+			origin
+		).catch(() => {});
+	}
+
 	return json({ success: true });
 };

src/routes/api/notes/[id]/share/+server.ts

@@ -0,0 +1,17 @@
+import { json } from '@sveltejs/kit';
+import type { RequestHandler } from './$types.js';
+import { getUserId } from '$lib/server/api-utils.js';
+import { createShare, revokeShare } from '$lib/server/shares-service.js';
+import { db } from '$lib/server/db/index.js';
+
+export const POST: RequestHandler = async ({ params, url, ...event }) => {
+	const userId = getUserId(event);
+	const { token } = createShare(db, params.id, userId);
+	return json({ token, url: `${url.origin}/s/${token}` }, { status: 201 });
+};
+
+export const DELETE: RequestHandler = async ({ params, ...event }) => {
+	const userId = getUserId(event);
+	revokeShare(db, params.id, userId);
+	return new Response(null, { status: 204 });
+};

src/routes/api/notes/[id]/versions/+server.ts

@@ -0,0 +1,13 @@
+import { json, error } from '@sveltejs/kit';
+import type { RequestHandler } from './$types.js';
+import { db } from '$lib/server/db/index.js';
+import { getUserId, requireNoteAccess } from '$lib/server/api-utils.js';
+import { listVersions } from '$lib/server/versions-service.js';
+
+export const GET: RequestHandler = async ({ params, ...event }) => {
+	const userId = getUserId(event);
+	requireNoteAccess(db, params.id, userId);
+
+	const versions = listVersions(db, params.id);
+	return json(versions);
+};

src/routes/api/notes/[id]/versions/[versionId]/+server.ts

@@ -0,0 +1,15 @@
+import { json, error } from '@sveltejs/kit';
+import type { RequestHandler } from './$types.js';
+import { db } from '$lib/server/db/index.js';
+import { getUserId, requireNoteAccess } from '$lib/server/api-utils.js';
+import { getVersion } from '$lib/server/versions-service.js';
+
+export const GET: RequestHandler = async ({ params, ...event }) => {
+	const userId = getUserId(event);
+	requireNoteAccess(db, params.id, userId);
+
+	const version = getVersion(db, params.id, params.versionId);
+	if (!version) throw error(404, 'Version not found');
+
+	return json(version);
+};

src/routes/api/notes/[id]/versions/[versionId]/restore/+server.ts

@@ -0,0 +1,29 @@
+import { json, error } from '@sveltejs/kit';
+import type { RequestHandler } from './$types.js';
+import { db } from '$lib/server/db/index.js';
+import { getUserId, requireNoteAccess } from '$lib/server/api-utils.js';
+import { getVersion, snapshotCurrentNote } from '$lib/server/versions-service.js';
+import { updateNote } from '$lib/server/notes-service.js';
+
+export const POST: RequestHandler = async ({ params, ...event }) => {
+	const userId = getUserId(event);
+	requireNoteAccess(db, params.id, userId);
+
+	const version = getVersion(db, params.id, params.versionId);
+	if (!version) throw error(404, 'Version not found');
+
+	// Snapshot current state before overwriting so the user can undo the restore
+	snapshotCurrentNote(db, params.id);
+
+	// Apply the restored content (updateNote will increment version + create a new snapshot)
+	const restored = updateNote(db, userId, params.id, {
+		title: version.title,
+		content: version.content,
+		checklistMode: version.checklistMode,
+		color: version.color
+	});
+
+	if (!restored) throw error(404, 'Note not found');
+
+	return json(restored);
+};

src/routes/api/shared/[token]/+server.ts

@@ -0,0 +1,20 @@
+import { json, error } from '@sveltejs/kit';
+import type { RequestHandler } from './$types.js';
+import { getSharedNote } from '$lib/server/shares-service.js';
+import { checkIpRateLimit } from '$lib/server/ip-rate-limit.js';
+import { db } from '$lib/server/db/index.js';
+
+export const GET: RequestHandler = async ({ params, getClientAddress }) => {
+	const ip = getClientAddress();
+	if (!checkIpRateLimit(ip)) {
+		throw error(429, 'Too many requests');
+	}
+
+	const data = getSharedNote(db, params.token);
+	if (!data) {
+		throw error(404, 'Not found');
+	}
+
+	const { noteId: _, ...publicData } = data;
+	return json(publicData);
+};

src/routes/api/shared/[token]/attachment/[attachmentId]/+server.ts

@@ -0,0 +1,41 @@
+import { error } from '@sveltejs/kit';
+import type { RequestHandler } from './$types.js';
+import { getSharedNote } from '$lib/server/shares-service.js';
+import { getAttachment } from '$lib/server/attachments.js';
+import { checkIpRateLimit } from '$lib/server/ip-rate-limit.js';
+import { db } from '$lib/server/db/index.js';
+import { readFile } from 'fs/promises';
+
+export const GET: RequestHandler = async ({ params, url, getClientAddress }) => {
+	const ip = getClientAddress();
+	if (!checkIpRateLimit(ip)) {
+		throw error(429, 'Too many requests');
+	}
+
+	const data = getSharedNote(db, params.token);
+	if (!data) {
+		throw error(404, 'Not found');
+	}
+
+	const attachment = await getAttachment(db, params.attachmentId, data.noteId);
+	if (!attachment) {
+		throw error(404, 'Attachment not found');
+	}
+
+	const wantThumb = url.searchParams.get('thumb') === '1';
+	const filePath = wantThumb && attachment.thumbnailPath ? attachment.thumbnailPath : attachment.path;
+	const mimeType = wantThumb && attachment.thumbnailPath ? 'image/webp' : attachment.mimeType;
+
+	try {
+		const buffer = await readFile(filePath);
+		return new Response(buffer, {
+			headers: {
+				'Content-Type': mimeType,
+				'Content-Disposition': `inline; filename="${attachment.filename}"`,
+				'Cache-Control': 'public, max-age=3600'
+			}
+		});
+	} catch {
+		throw error(404, 'Attachment not found');
+	}
+};