P3-56: three call sites repeated the same 'lookup → fall back to
new → set if missing' dance for session stores. The duplication hid the
fact that the fallback allocation in the second and third sites could
be wasted when the entry already existed. Extract a single
getOrCreateStore helper that does one map lookup, one conditional
construction, and always returns the cached instance.
- ChannelSidebar: replace inline color-mix style with Tailwind classes for task discussion icons
- MessageItem: replace broken priority config (color-mix inline) with Tailwind utility classes
- MessageItem: replace broken department badge hex-alpha pattern with Tailwind classes
- automation-config: restore ACCENT/LINE as hex values (used in template literal alpha suffixes)
- desktop-shell-service: set nativeTheme.themeSource to sync Windows title bar with app theme
Priority badges had identical bg and text colors (both solid destructive
red for urgent), creating oversized solid-color blocks. Use 15% tinted
backgrounds so text remains readable and badges appear as subtle pills.
The task discussion avatar used solid var(--primary) background making a
dark square. Use 12% tinted primary instead (matching other channel icons).
Also change selected state from bg-muted to bg-accent for consistency
with regular channel items.
- Replace all bg-[color:var(--old)] with bg-background/bg-card/bg-muted/bg-primary etc.
- Replace all text-[color:var(--old)] with text-foreground/text-muted-foreground/text-primary etc.
- Replace all border-[color:var(--line)] with border-border
- Replace all inline var(--old) with var(--new) equivalents
- Replace all rounded-[6px]/rounded-[8px] with rounded-lg
- Replace .surface class with bg-card border border-border shadow-sm
- Replace .focus-ring class with focus-visible Tailwind utilities
- Replace .mono class with font-mono
- Replace data-theme attribute with class-based dark mode
- 99 files updated, ~1265 lines changed, zero old references remaining
- Create SearchResults component with virtualized list, term highlighting via <mark>, keyboard navigation, loading/empty states
- Add search scope toggle (All Channels / This Channel) with radio group accessibility
- Integrate debounced (300ms) IPC search into CommunicationHub with stale response discard via requestId
- Update CommunicationSlice with search state (query, scope, results, loading, requestId)
- Modify FilterBar to accept scopeToggle prop and Escape key handler
- AnimatePresence cross-fade between SearchResults and MessageList views
- Install @tanstack/react-virtual for virtualized list rendering
- Create useRovingTabIndex hook in src/renderer/lib/keyboard.ts for arrow-key navigation
- Add virtualization to 6 lists: TaskQueue, ApprovalList, ActivityList, CostList, AgentRoster, MessageList
- MessageList uses measureElement for variable-height message items with auto-scroll
- All 6 lists have role="listbox" with role="option" on rows for accessibility
- All 6 lists support ArrowDown/ArrowUp/j/k/Home/End keyboard navigation
- Add 8 unit tests for useRovingTabIndex covering all key bindings and edge cases
- CommunicationHub.tsx: main layout shell with sidebar + message area
- ChannelSidebar.tsx: channel list with unread badges and filter bar
- MessageList.tsx: message display with threading and empty states
- MessageItem.tsx: message bubble, task comment bubble, agent avatar
- MessageComposer.tsx: message input, task discussion composer, compose modal
- ChannelHeader.tsx: channel info bar with stats
- channel-utils.ts: shared channel derivation and message filtering logic
- Original communication.tsx replaced with backward-compatible re-exports
- All sub-components under 300 lines, TypeScript compilation passes
ZacharyZhang-NY