- Add Feishu Mobile Config feature across all layers (types, secrets, config, IPC, UI)
- Replace Mac glassmorphism design with Windows flat design (settings.css)
- Improve secret reveal UX: loading spinner, error handling, touched state tracking
- Change basic tab layout from single compact card to 3-card bento layout
- Add Modal component (apps/ui/src/components/ui/Modal.tsx)
- Start editable sections in edit mode by default
- Add workspace directory save/restore buttons to SettingsPanels
- Add reveal error display in settings toolbar
- Clean up dead CSS classes from old basic tab layout
- Fix modal panel to use flat design matching settings style
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>