d85898cae7
Major architectural change to simplify authentication by authenticating directly against CalDAV servers instead of maintaining a local user database. Backend changes: - Remove SQLite database dependencies and user storage - Refactor AuthService to authenticate directly against CalDAV servers - Update JWT tokens to store CalDAV server info instead of user IDs - Implement proper CalDAV calendar discovery with XML parsing - Fix URL construction for CalDAV REPORT requests - Add comprehensive debug logging for authentication flow Frontend changes: - Add server URL input field to login form - Remove registration functionality entirely - Update calendar service to pass CalDAV passwords via headers - Store CalDAV credentials in localStorage for API calls Key improvements: - Simplified architecture eliminates database complexity - Direct CalDAV authentication ensures credentials always work - Proper calendar discovery automatically finds user calendars - Robust error handling and debug logging for troubleshooting 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>