Adds src/lib/utils/theme.svelte.ts with applyTheme() (sets data-theme
attribute and meta theme-color) and getIsDarkMode(). Uses a plain
variable instead of $state since Vitest's node environment does not
compile Svelte 5 runes in .svelte.ts files. Adds jsdom dev dependency
and $app/environment alias in vitest config to support DOM-level unit
tests; fixes preferences.test.ts to include the theme default added
in Task 2.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Add V8 coverage for unit tests via @vitest/coverage-v8 and Istanbul
instrumentation for E2E tests via vite-plugin-istanbul. Coverage data
is collected from browser pages after each Playwright test and merged
with nyc. CI uploads both coverage reports as GitHub Actions artifacts.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
getChangesSince was returning the owner's pinned/archived/sortOrder
for shared notes instead of the collaborator's per-user values from
noteUserState. Also filtered trashed notes from collaborator sync.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
