- Added routes in router.go: POST, GET, PUT, DELETE /playlists/:id/collaborators
- Applied RequireOwnershipOrAdmin middleware to POST, PUT, DELETE routes
- GET route accessible to collaborators (service layer checks permissions)
- Fixed UpdateCollaboratorPermission handler to use RespondWithAppError
- All handlers already existed in playlist_handler.go
- All endpoints properly authenticated and ownership checks enforced
Phase: PHASE-1
Priority: P0
Progress: 5/267 (1.9%)
- Created TwoFactorHandler with SetupTwoFactor, VerifyTwoFactor, DisableTwoFactor, GetTwoFactorStatus
- Added routes: POST /auth/2fa/setup, POST /auth/2fa/verify, POST /auth/2fa/disable, GET /auth/2fa/status
- Updated LoginResponse DTO to include requires_2fa flag
- Updated Login handler to check 2FA status and return requires_2fa flag when enabled
- Reused existing TwoFactorService (already had QR generation and TOTP verification)
- Added VerifyTOTPCode helper method to TwoFactorService
- All endpoints properly authenticated with RequireAuth middleware
Phase: PHASE-1
Priority: P0
Progress: 4/267 (1.5%)
