The session sidebar already uses project grouping, so the change adds header-level project actions instead of replacing project row controls. Sorting and organization choices are persisted through the existing desktop UI preferences file and mirrored into local cache for startup continuity.
Constraint: Keep the existing project tree, drag ordering, pinning, hiding, and Finder project-row actions intact.
Rejected: Replacing project row actions with the header menu | row-level Finder and per-project session actions are still useful and already covered by tests.
Confidence: high
Scope-risk: moderate
Directive: Do not store sidebar organization in global Claude settings; keep it under cc-haha desktop-ui preferences.
Tested: cd desktop && bun run test -- src/components/layout/Sidebar.test.tsx
Tested: bun test src/server/__tests__/desktop-ui-preferences.test.ts
Tested: cd desktop && bun run lint
Tested: cd desktop && bun run build
Sidebar project ordering, pinning, and hidden-project state must survive
browser access to the same local server, so the UI now stores these
preferences under the cc-haha config directory and keeps localStorage as
a migration/cache fallback.
Constraint: Browser and H5 localStorage is isolated from the Tauri WebView
Rejected: Keep sidebar project preferences only in localStorage | browser sessions would not share state
Rejected: Reuse cc-haha/settings.json | provider and H5 access settings should stay separate
Confidence: high
Scope-risk: moderate
Directive: Keep sidebar hide/remove semantics non-destructive; do not delete transcript files for project removal
Tested: cd desktop && bun run test -- src/components/layout/Sidebar.test.tsx --run
Tested: cd desktop && bun run lint
Tested: bun test src/server/__tests__/desktop-ui-preferences.test.ts
Tested: bun run check:persistence-upgrade
Tested: bun run check:server
