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>
Implemented full conversation management interface with the following features:
- Conversation history sidebar (desktop) / drawer (mobile)
- Load and display all user conversations
- Click to load specific conversation
- "New Chat" button to start fresh conversation
- Delete conversation with confirmation dialog
- Persist conversationId across messages in same conversation
- Responsive design with Material-UI breakpoints
Technical Details:
- Added Conversation interface and state management (lines 107-111)
- Load conversations from GET /api/v1/ai/conversations on mount
- Load specific conversation from GET /api/v1/ai/conversations/:id
- Delete conversation via DELETE /api/v1/ai/conversations/:id
- Updated handleSend() to pass currentConversationId instead of null
- Auto-update conversationId from API response for new conversations
- Mobile: Hamburger menu to open drawer
- Desktop: Fixed 320px sidebar with conversation list
Component grew from 420 → 663 lines
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Implements full regulatory compliance for data privacy and child protection:
**GDPR Compliance (Right to Data Portability & Right to Erasure):**
- Data export API endpoint (GET /compliance/data-export)
- Exports all user data across 7 entities in JSON format
- Account deletion with 30-day grace period
- POST /compliance/request-deletion
- POST /compliance/cancel-deletion
- GET /compliance/deletion-status
- Scheduled job runs daily at 2 AM to process expired deletion requests
- Audit logging for all compliance actions
**COPPA Compliance (Children's Online Privacy Protection):**
- Age verification during signup (blocks users under 13)
- Parental consent requirement for users 13-17
- Database fields: date_of_birth, coppa_consent_given, parental_email
- Audit logging for consent events
**Technical Implementation:**
- Created ComplianceModule with service, controller, scheduler
- V015 migration: deletion_requests table
- V016 migration: COPPA fields in users table
- Updated User entity and RegisterDto
- Age calculation helper in AuthService
- Installed @nestjs/schedule for cron jobs
All endpoints secured with JwtAuthGuard. Backend compiles with 0 errors.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
