- Added new endpoints for exporting and importing instance-level backups.
- Introduced user interface components for backup management in the web app.
- Enhanced import/export logic to handle attachments and provide detailed summaries.
- Updated localization files to include new strings related to backup features.
- Improved styling for backup-related UI elements.
- Added TOTP support for two-factor authentication in user profiles and login flows.
- Introduced device management endpoints to handle known devices and their registration.
- Enhanced database schema to include devices and trusted two-factor tokens.
- Updated response handling to include two-factor token in successful login responses.
- Modified registration and login pages to guide users through enabling TOTP.
- Improved device identification and management utilities for better user experience.
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