- Export: table data_exports, POST /me/export (202), GET /me/exports, messages+playback_history
- Notification email quand ZIP prêt, rate limit 3/jour
- Suppression: keep_public_tracks, anonymisation PII complète (users, user_profiles)
- HardDeleteWorker: final anonymization après 30 jours
- Frontend: POST export, checkbox keep_public_tracks
- MSW handlers pour Storybook
- Created DataExportService for comprehensive user data export (GDPR compliance)
- Exports all user data: profile, settings, tracks, playlists, comments, likes, analytics, federated identities, roles
- Added ExportUserData method to retrieve all user data from database
- Added ExportUserDataAsJSON method to export as downloadable JSON file
- Added endpoint GET /api/v1/users/me/export that returns JSON file download
- Comprehensive unit tests for export service
- Proper error handling and logging
Phase: PHASE-6
Priority: P2
Progress: 118/267 (44.19%)
