docs: Update README and CHANGELOG for Phase 2 completion

README.md:
- Updated Phase 2 completion date: Nov 11-14 → Nov 11-15
- Added new section: Modular UI Architecture (Nov 15)
- Listed all reusable components and their modes
- Added code reduction metrics (62% reduction, -227 net lines)
- Removed outdated 'email link' mention

CHANGELOG.md:
- Complete rewrite for feature/SocialMedia branch
- Added Phase 1: Social Media Consent Management (Nov 9-10)
  * Backend: Migrations, APIs, validation
  * Frontend: ConsentCheckboxes, ConsentBadges, filters
  * Testing results and GDPR compliance
- Added Phase 2 Backend: Management Portal (Nov 11)
  * Management APIs, security features, audit log
  * Rate limiting and brute-force protection
- Added Phase 2 Frontend: Management Portal UI (Nov 13-14)
  * ManagementPortalPage, component reuse
  * Upload success integration
- Added Phase 2 UI Refactoring (Nov 15)
  * 4 new modular components (686 lines)
  * Multi-mode support (upload/edit/moderate)
  * Code reduction metrics
  * UI consistency patterns
  * Bug fixes

All documentation now accurately reflects Nov 9-15 work.

CHANGELOG.md

@@ -1,5 +1,154 @@
 # Changelog
 
+## [Unreleased] - Branch: feature/SocialMedia
+
+### 🎨 Modular UI Architecture (November 15, 2025)
+
+#### Features
+- ✅ **Reusable Component System**: Created modular components for all pages
+  - `ConsentManager.js` (263 lines): Workshop + Social Media consents with edit/upload modes
+  - `GroupMetadataEditor.js` (146 lines): Metadata editing with edit/upload/moderate modes  
+  - `ImageDescriptionManager.js` (175 lines): Batch image descriptions with manage/moderate modes
+  - `DeleteGroupButton.js` (102 lines): Standalone group deletion component
+  
+- ✅ **Multi-Mode Support**: Components adapt behavior based on context
+  - `mode="upload"`: External state, no save buttons (MultiUploadPage)
+  - `mode="edit"`: Management API endpoints (ManagementPortalPage)
+  - `mode="moderate"`: Admin API endpoints (ModerationGroupImagesPage)
+  
+- ✅ **Code Reduction**: Massive reduction in code duplication
+  - ManagementPortalPage: 1000→400 lines (-60%)
+  - ModerationGroupImagesPage: 281→107 lines (-62%)
+  - MultiUploadPage: Refactored to use modular components
+  - Net result: +288 lines added, -515 lines removed = **-227 lines total**
+
+#### UI Consistency
+- 🎨 **Design System**: Established consistent patterns across all pages
+  - Paper boxes with headings inside (not outside)
+  - HTML `<button>` with CSS classes instead of Material-UI Button
+  - Material-UI Alert for inline feedback (SweetAlert2 only for destructive actions)
+  - Icons: 💾 save, ↩ discard, 🗑️ delete, 📥 download
+  - Individual save/discard per component section
+
+#### Bug Fixes
+- <20> Fixed: Image descriptions not saving during upload (preview ID → filename mapping)
+- 🐛 Fixed: FilterListIcon import missing in ModerationGroupsPage
+- 🐛 Fixed: Button styles inconsistent across pages
+
+#### Technical Details
+- **Frontend Changes**:
+  - New files: 4 modular components (686 lines)
+  - Refactored files: 7 pages with consistent patterns
+  - State management: Deep copy pattern, JSON comparison, set-based comparison
+  - API integration: Mode-based endpoint selection
+
+---
+
+### 🔑 Self-Service Management Portal (November 11-14, 2025)
+
+#### Backend Features (Phase 2 Backend - Nov 11)
+- ✅ **Management Token System**: UUID v4 token generation and validation
+  - Tokens stored in `groups.management_token` column
+  - Token-based authentication for all management operations
+  - Format validation (UUID v4 regex)
+  
+- ✅ **Management APIs**: Complete self-service functionality
+  - `GET /api/manage/:token` - Load group data
+  - `PUT /api/manage/:token/consents` - Revoke/restore consents
+  - `PUT /api/manage/:token/metadata` - Edit title/description
+  - `PUT /api/manage/:token/images/descriptions` - Batch update descriptions
+  - `POST /api/manage/:token/images` - Add images (max 50 per group)
+  - `DELETE /api/manage/:token/images/:imageId` - Delete single image
+  - `DELETE /api/manage/:token` - Delete entire group
+  
+- ✅ **Security Features**:
+  - Rate limiting: 10 requests/hour per IP (in-memory)
+  - Brute-force protection: 20 failed attempts → 24h IP ban
+  - Management audit log: All actions tracked in `management_audit_log` table
+  - Token masking: Only first 8 characters logged
+  
+- ✅ **Database Migration 007**: Management audit log table
+  - Tracks: action, success, error_message, ip_address, user_agent
+  - Indexes for performance: group_id, action, ip_address, created_at
+  
+#### Frontend Features (Phase 2 Frontend - Nov 13-14)
+- ✅ **Management Portal Page**: Full-featured user interface at `/manage/:token`
+  - Token validation with error handling
+  - Consent management UI (revoke/restore)
+  - Metadata editing UI
+  - Image upload/delete UI
+  - Group deletion UI (with confirmation)
+  
+- ✅ **Component Reuse**: ConsentCheckboxes with mode support
+  - `mode="upload"`: Upload page behavior
+  - `mode="manage"`: Management portal behavior
+  - Eliminates ~150 lines of duplicated code
+  
+- ✅ **Upload Success Integration**: Management link prominently displayed
+  - Copy-to-clipboard functionality
+  - Security warning about safe storage
+  - Email link for social media post deletion requests
+
+---
+
+### 🔐 Social Media Consent Management (November 9-10, 2025)
+
+#### Backend Features (Phase 1 Backend - Nov 9)
+- ✅ **Database Migrations**:
+  - Migration 005: Added consent fields to `groups` table
+    * `display_in_workshop` (BOOLEAN, NOT NULL, default 0)
+    * `consent_timestamp` (DATETIME)
+    * `management_token` (TEXT, UNIQUE) - for Phase 2
+  - Migration 006: Social media platform system
+    * `social_media_platforms` table (configurable platforms)
+    * `group_social_media_consents` table (per-group, per-platform consents)
+    * Revocation tracking: `revoked`, `revoked_timestamp` columns
+  - GDPR-compliant: Old groups keep `display_in_workshop = 0` (no automatic consent)
+  
+- ✅ **API Endpoints**:
+  - `GET /api/social-media/platforms` - List active platforms (Facebook, Instagram, TikTok)
+  - `POST /api/groups/:groupId/consents` - Save consents (batch operation)
+  - `GET /api/groups/:groupId/consents` - Load consent status
+  - `GET /api/admin/groups/by-consent` - Filter groups by consent (all, workshop, platform-specific)
+  - `GET /api/admin/consents/export` - Export consent data (CSV/JSON format)
+  
+- ✅ **Upload Validation**: 400 error if `display_in_workshop` not set to true
+  
+- ✅ **Repositories**:
+  - `SocialMediaRepository.js`: Platform & consent management
+  - Extended `GroupRepository.js`: Consent filtering queries
+
+#### Frontend Features (Phase 1 Frontend - Nov 10)
+- ✅ **ConsentCheckboxes Component**: GDPR-compliant consent UI
+  - Workshop consent (mandatory, cannot upload without)
+  - Social media consents (optional, per-platform checkboxes)
+  - Informative tooltips explaining usage
+  - Legal notice about moderation and withdrawal rights
+  
+- ✅ **ConsentBadges Component**: Visual consent status indicators
+  - Icons: 🏭 Workshop, 📱 Facebook, 📷 Instagram, 🎵 TikTok
+  - Tooltips with consent details and timestamps
+  - Filtering support for revoked consents
+  
+- ✅ **Moderation Panel Updates**:
+  - Consent filter dropdown (All, Workshop-only, per-platform)
+  - Export button for CSV/JSON download
+  - Consent badges on each group card
+  - In-memory filtering (loads all groups, filters client-side)
+  
+- ✅ **Upload Success Dialog**: Group ID display for consent withdrawal reference
+
+#### Testing Results (Nov 10)
+- ✅ Upload with/without workshop consent
+- ✅ Social media consent persistence
+- ✅ Filter functionality (All: 76, Workshop: 74, Facebook: 2)
+- ✅ CSV export with proper formatting
+- ✅ Badge icons and tooltips
+- ✅ Migration 005 & 006 auto-applied on startup
+- ✅ GDPR validation: 72 old groups with display_in_workshop = 0
+
+---
+
 ## [Unreleased] - Branch: feature/PreloadImage
 
 ### 🚀 Slideshow Optimization (November 2025)

README.md

@@ -28,18 +28,23 @@ This project extends the original [Image-Uploader by vallezw](https://github.com
   - Consent badges and filtering in moderation panel
   - CSV/JSON export for legal documentation
   - Group ID tracking for consent withdrawal requests
-- **🔑 Self-Service Management Portal** (Phase 2 Complete - Nov 11-14):
+- **🔑 Self-Service Management Portal** (Phase 2 Complete - Nov 11-15):
   - Secure UUID-based management tokens for user self-service
   - Frontend portal at `/manage/:token` for consent management
   - Revoke/restore consents for workshop and social media
   - Edit metadata (title, description) after upload
   - Add/delete images after upload (with moderation re-approval)
   - Complete group deletion with audit trail
-  - Reusable ConsentCheckboxes component (no code duplication)
-  - Email link for social media post deletion requests
   - IP-based rate limiting (10 requests/hour)
   - Brute-force protection (20 failed attempts → 24h ban)
   - Management audit log for security tracking
+- **🎨 Modular UI Architecture** (Nov 15):
+  - Reusable components: ConsentManager, GroupMetadataEditor, ImageDescriptionManager
+  - Multi-mode support: upload/edit/moderate modes for maximum reusability
+  - Code reduction: 62% in ModerationGroupImagesPage (281→107 lines)
+  - Consistent design: HTML buttons, Paper boxes, Material-UI Alerts
+  - Individual save/discard per component section
+  - Zero code duplication between pages
 - **<EFBFBD> Slideshow Optimization**: Intelligent image preloading eliminates loading delays and duplicate images
 - **📅 Chronological Display**: Slideshows now play in chronological order (year → upload date)
 - **Automatic Cleanup**: Unapproved groups are automatically deleted after 7 days