Files
ColaFlow-Web/app/(dashboard)/projects/[id]/kanban
Yaojia Wang 6c8ac6ee61 feat(frontend): Complete Story 3 - Kanban Board Updates (M1 Sprint 1)
Migrated Kanban board from Issue API to ProjectManagement API and added
real-time SignalR updates with hierarchy visualization.

Changes:
**Task 1: Migrate to ProjectManagement API (3h)**
- Replaced useIssues with useEpics/useStories/useTasks hooks
- Combined Epic/Story/Task into unified KanbanWorkItem interface
- Implemented useMemo for efficient work item grouping by status
- Maintained backward compatibility with existing drag-and-drop

**Task 2: Add Hierarchy Indicators (2h)**
- Replaced emoji icons with lucide-react icons (FolderKanban, FileText, CheckSquare)
- Added parent breadcrumb for Story (shows Epic) and Task (shows Story)
- Added child count badges for Epic (shows story count) and Story (shows task count)
- Enhanced card layout with description, priority, and estimated hours
- Improved visual hierarchy with proper spacing and truncation

**Task 3: Integrate SignalR Real-time Updates (3h)**
- Subscribed to 19 SignalR events (6 Epic + 6 Story + 7 Task events)
- Implemented automatic query invalidation on create/update/delete
- Implemented optimistic updates for status changes (instant UI feedback)
- Added comprehensive console logging for debugging
- Proper cleanup of all event subscriptions on unmount

Features:
- Epic/Story/Task all visible on Kanban board
- Real-time updates across all connected clients
- Hierarchy visualization (parent breadcrumbs + child counts)
- Optimistic UI updates (no waiting for API)
- Type-safe implementation with TypeScript
- Performance optimized with useMemo

Technical Stack:
- React Query for data fetching and caching
- SignalR for real-time WebSocket communication
- dnd-kit for drag-and-drop (preserved from existing implementation)
- lucide-react for consistent iconography

Acceptance Criteria Met:
 AC1: Kanban loads from ProjectManagement API
 AC2: Hierarchy indicators displayed on cards
 AC3: SignalR real-time updates working
 AC4: Performance maintained (useMemo optimizations)

Files Modified:
- app/(dashboard)/projects/[id]/kanban/page.tsx (170 lines added)
- components/features/kanban/IssueCard.tsx (90 lines added)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-04 23:16:01 +01:00
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