Implemented mobile-first collapsible conversation groups with full group management:
Backend Changes:
- Added PATCH /api/v1/ai/conversations/:id/group endpoint to move conversations
- Added GET /api/v1/ai/groups endpoint to list user groups
- Added updateConversationGroup() service method (ai.service.ts:687-710)
- Added getConversationGroups() service method (ai.service.ts:712-730)
- Uses existing metadata field in AIConversation entity (no migration needed)
- Updated getUserConversations() to include metadata field
Frontend Changes:
- Implemented collapsible group headers with Folder/FolderOpen icons
- Added organizeConversations() to group by metadata.groupName (lines 243-271)
- Added toggleGroupCollapse() for expand/collapse functionality (lines 273-283)
- Implemented context menu with "Move to Group" and "Delete" options (lines 309-320)
- Created Move to Group dialog with existing groups list (lines 858-910)
- Created Create New Group dialog with text input (lines 912-952)
- Mobile-first design with touch-optimized targets and smooth animations
- Right-click (desktop) or long-press (mobile) for context menu
- Shows conversation count per group in header
- Indented conversations (pl: 5) show visual hierarchy
- Groups sorted alphabetically with "Ungrouped" always last
Component Growth:
- Backend: ai.controller.ts (+35 lines), ai.service.ts (+43 lines)
- Frontend: AIChatInterface.tsx (663 → 955 lines, +292 lines)
Mobile UX Enhancements:
- MoreVert icon on mobile vs Delete icon on desktop
- Touch-optimized group headers (larger padding)
- Smooth Collapse animations (timeout: 'auto')
- Context menu replaces inline actions on small screens
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>