- C3: Register User, UserSession, NtfySent, TOTPUsage, BackupCode in models/__init__.py - C4: Enforce settings.user_id NOT NULL after backfill in migration 023, update model - W4: Rename misleading current_user → current_settings in dashboard.py - W5: Match NtfySettingsSection initial state defaults to backend (true/1/2) - W8: Clear lockout banner on username/password input change in LockScreen Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>