- Remove standalone InboxService and move functionality to UserService
- Rename inbox to user notifications for better API consistency
- Add ListUserNotifications, UpdateUserNotification, DeleteUserNotification methods
- Update frontend components to use new notification endpoints
- Update store layer to support new notification model
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Update GetUser to accept both numeric IDs and username strings (users/{id} or users/{username})
- Implement CEL filter parsing for username-based lookups
- Update proto documentation to reflect dual lookup capability
- Simplify frontend user store to use GetUser instead of ListUsers filter
- Update ListUsers filter documentation to show current capabilities