- Add createDomainEventBatcher with entity type+ID dedup within 50ms window
- Domain-changed overrides all granular events in same batch
- More than 10 unique entities triggers full refresh fallback
- Delete action preserved during coalescing (last-write-wins otherwise)
- Unknown event types trigger full refresh as safety fallback
- Legacy createEventBatcher preserved for backward compatibility
- Add 12 comprehensive tests for all coalescing behaviors
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- 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
- Install zustand 5.x and immer 11.x dependencies
- Create 6 Zustand slices: navigation, company, selection, ui, communication, social
- Create combined store with devtools + immer middleware
- Create IPC event batcher with 50ms debounce window (schedule/flush/dispose)
- Create typed selector hooks for narrow state subscriptions
- Add 14 unit tests covering store initialization, slice behaviors, and batcher timing
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
ZacharyZhang-NY
