- ChatPanel integrates useStreamingChat, ChatAgentSelector, ChatStopButton
- Agent routing via resolveAgentFromContent for slash commands and @mentions
- handleEdit: editMessage + truncateMessagesAfter + re-stream with edited content
- handleRetry: finds actual prior user message, truncates from user message onward, re-streams
- Build agentMap from agents for message identity bars
- ChatInput: slash command popover (triggered by / at start of input)
- ChatInput: @mention popover (triggered by @word pattern)
- Input disabled during streaming with 'Waiting for response...' placeholder
- Stop button shown conditionally when isStreaming
- Agent selector in header for per-conversation agent switching
- Remove ScrollArea wrapper (replaced by virtualizer's own scroll in ChatMessageList)
- Create ChatMentionPopover (200px, opens upward, agent icon + name + role label)
- Agents filtered by query, max 5 visible, No agents found empty state
- 3 skeleton rows loading state, onOpenAutoFocus prevented for textarea focus
- Include agent-role-colors dependency for worktree build
- Add id, isAnyStreaming, onEdit, onRetry props to ChatMessageProps
- User messages show edit Pencil on hover via ChatMessageActions
- Edit pencil opens inline textarea with Save/Discard buttons
- Save edit calls onEdit(id, newContent), disabled when textarea empty
- Discard edit reverts to read-only bubble
- Assistant messages show retry RefreshCw via ChatMessageActions
- All edit/retry actions disabled when isAnyStreaming is true
- Update test stubs to reflect new prop surface
- ChatStopButton: centered outline button with Square icon and 'Stop generating' label
- ChatMessageActions: edit Pencil for user messages (absolute, group-hover)
- ChatMessageActions: retry RefreshCw for assistant messages (right-aligned, group-hover)
- Both action buttons return null when isStreaming is true
- Proper aria-labels and tooltips on all interactive elements
- Create ChatAgentSelector with Popover+Command dropdown
- Show active agent icon, name, and ChevronDown indicator
- 'Select agent' placeholder when no agent selected
- 'No agents configured' empty state via CommandEmpty
- Agent list shows icon, name, and role label per item
- Selection calls onAgentChange and PATCHes conversation via chatApi
- Role-specific colors from agentRoleColors applied to agent icons
- Loading state shows Skeleton placeholder
- Create chat.ts API client with updateConversation supporting agentId
- Create shared types/chat.ts with ChatMessage, ChatConversation types
- Create ChatCodeBlock prerequisite from phase-21 base
- TypeScript compiles clean
- Create ChatMessageIdentityBar with agent icon, name, timestamp, and streaming dot
- Create ChatStreamingCursor with animate-cursor-blink and aria-hidden
- Extend ChatMessage with agentName, agentIcon, agentRole, timestamp, isStreaming props
- Wrap assistant messages in group div for hover actions (Plan 03)
- Create agent-role-colors.ts with 11 distinct role colors (light + dark variants)
- Create ChatMarkdownMessage prerequisite from phase-21 base
- All 4 ChatMessageIdentityBar tests pass
- Add postMessageAndStream and savePartialMessage to chatApi (fetch ReadableStream for POST SSE)
- Create useStreamingChat hook with startStream, stop, streamingContent, isStreaming
- startTransition wraps token updates to avoid blocking user input (PERF-02)
- AbortController used for stop functionality (CHAT-12)
- stop() saves partial content with [stopped] suffix to DB
- Add @testing-library/react devDependency to enable renderHook testing
- 5 passing unit tests: token accumulation, lifecycle, stop/abort, error, null guard
- Add editMessage, truncateMessagesAfter, streamEcho methods to chatService
- Add POST /conversations/:id/stream SSE endpoint with flushHeaders before loop (PERF-02)
- Add PATCH /conversations/:id/messages/:msgId for message editing
- Add DELETE /conversations/:id/messages/after/:msgId for message truncation
- Import gt from drizzle-orm for createdAt comparison in truncateMessagesAfter
- Guard all res.write() calls with res.writable check (prevents write-after-end)
- Add Search/X icons and Input to ChatConversationList with 300ms debounce
- Listen for nexus:focus-chat-search event to focus search input
- Add onSearch handler to useKeyboardShortcuts (fires before input guard)
- Wire Layout Cmd+K to open chat panel and dispatch focus event
- Add ilike import and search/agentId conditions in chatService.listConversations
- Extract search and agentId from req.query in GET /conversations route
- Extend chatApi.listConversations opts with search and agentId params
- Update useChatConversations to accept opts.search and include in queryKey
- Add ChatConversationItem with DropdownMenu actions (Rename, Pin/Unpin, Archive, Delete) and active highlight
- Add ChatConversationList with IntersectionObserver infinite scroll, loading skeletons, delete confirmation dialog, and CRUD handlers
- Add ChatMessageList with auto-scroll-to-bottom on new messages and empty state
- Update ChatPanel to render ChatConversationList (left column) and ChatMessageList (right column); handleSend uses two paths: direct chatApi for new conversations, hook mutation for existing ones
- chatRoutes factory with 7 REST endpoints for conversations and messages
- All routes gated by assertBoard; company-scoped routes also use assertCompanyAccess
- Mounted as api.use(chatRoutes(db)) after activityRoutes in app.ts
- Export createConversationSchema/updateConversationSchema/createMessageSchema
from @paperclipai/shared (were missing from main package index)
- 11 vitest route tests passing
- ChatMarkdownMessage: renders markdown with rehype-highlight syntax highlighting
- ChatCodeBlock: pre override with language label and copy button (1500ms success state)
- Uses ExtraProps from react-markdown for correct TypeScript types
- All tests pass, TypeScript compiles without errors
