## Integration Settings Persistence
- Add database commands to save/load integration configs (base_url, username, project_name, space_key)
- Frontend now loads configs from DB on mount and saves changes automatically
- Fixes issue where settings were lost on app restart
## Persistent Browser Window Architecture
- Integration browser windows now stay open for user browsing and authentication
- Extract fresh cookies before each API call to handle token rotation
- Track open windows in app state (integration_webviews HashMap)
- Windows titled as "{Service} Browser (TFTSR)" for clarity
- Support easy navigation between app and browser windows (Cmd+Tab/Alt+Tab)
- Gracefully handle closed windows with automatic cleanup
## Bug Fixes
- Fix Rust formatting issues across 8 files
- Fix clippy warnings:
- Use is_some_and() instead of map_or() in openai.rs
- Use .to_string() instead of format!() in integrations.rs
- Add missing OptionalExtension import for .optional() method
## Tests
- Add test_integration_config_serialization
- Add test_webview_tracking
- Add test_token_auth_request_serialization
- All 6 integration tests passing
## Files Modified
- src-tauri/src/state.rs: Add integration_webviews tracking
- src-tauri/src/lib.rs: Register 3 new commands, initialize webviews HashMap
- src-tauri/src/commands/integrations.rs: Config persistence, fresh cookie extraction (+151 lines)
- src-tauri/src/integrations/webview_auth.rs: Persistent window behavior
- src/lib/tauriCommands.ts: TypeScript wrappers for new commands
- src/pages/Settings/Integrations.tsx: Load/save configs from DB
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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