Adds a secure endpoint for creating a single subfolder in the current filesystem listing, and wires the non-native directory browser UI to create + enter the new folder.
- Remove 3-state logic (normal/50%/80%) - now only normal/expanded
- Remove double-click detection and tooltips for simplicity
- Remove platform-specific behavior (same UX for Electron and web)
- Optimize button layout: reduce from 36px to 28px to fit 3 buttons
- Position expand button above history buttons in vertical stack
- Keep 15-line expanded height (360px, capped to available space)
Per upstream dev feedback to keep it simple with one approach
- Add platform detection (Electron vs Web) for expand behavior
- Electron: 3-state (normal → 50% → 80%) with double-click
- Web/Mobile: 2-state (normal → expanded) with instant single tap
- Implement fixed 15-line height for web/mobile (360px, capped)
- Add orientation-aware height calculation (landscape vs portrait)
- Remove tooltip on web/mobile, keep for Electron desktop
- Add responsive placeholder text to prevent overlap on mobile
- Desktop: "Type your message, @file, @agent, or paste images and text..."
- Mobile (≤640px): "Type message, @file, @agent..."
- Delete dev-docs/expand-chat-input.md per upstream feedback
Addresses PR feedback to simplify from 3-state to 2-state for web/mobile
while maintaining rich desktop experience in Electron app.
- Add expand button with Maximize2/Minimize2 icons
- Implement 3-state height management (normal/50%/80%)
- Smart double-click detection with 300ms delay
- Height calculation based on session-view - 200px message space
- Custom CSS tooltip with dark gradient background and backdrop blur
- Send button anchored at bottom via margin-top: auto
- Smooth CSS transitions throughout
- Double-click at 80% now reduces to 50% (not normal)
- Removed all debug console.log statements
Show sessions as parent/child threads with expand/collapse and improved agent row styling. Keep a 5-session cache to avoid refetching messages when switching between recently visited sessions.
- Removed box-shadow from active permission items to eliminate double-border effect
- Added CSS rule to remove borders from nested ToolCall components within permission items
- Ensures consistent single-border styling aligned with existing design system
Implements a unified permission notification UI that adapts to different runtime
environments (Electron desktop vs web browser) with distinct visual presentations.
## What Changed
### New Components
- `permission-notification-banner.tsx`: Adaptive notification component
* Electron (desktop): Full banner with "⚠️ Approval Required" text and count badge
* Web browser (portrait): Circular indicator badge showing pending count
- `permission-approval-modal.tsx`: Interactive modal for reviewing/approving permissions
* Displays permission type, detailed message, and diff viewer for file changes
* Keyboard shortcuts: Enter (allow once), A (always), D (deny), Esc (close)
* Queue management with "X of Y" counter for multiple pending permissions
- `permission-notification.css`: Comprehensive styling with pulsing animations
### Integration
- Updated `instance-shell2.tsx`:
* Added banner to desktop center toolbar (next to Command Palette)
* Added banner to mobile/phone layout center section
* Added modal component for permission approval workflow
- Updated `controls.css`: Imported new permission notification styles
## Why This Change
**Before**: Permission requests had no visual indicator in the UI, making it
difficult for users to know when agent/subagent actions required approval.
**After**: Users receive clear, persistent visual notifications with:
- Pulsing animation to draw attention
- Environment-appropriate UI (full banner on desktop, compact badge on web)
- Click-to-review workflow with full permission details
## Benefits
1. **Better UX**: Users immediately see when permissions need approval
2. **Responsive Design**: Adapts to desktop (Electron) and web browser contexts
3. **Accessible**: Proper ARIA labels, keyboard shortcuts, and focus management
4. **Queue Management**: Handles multiple pending permissions gracefully
5. **Contextual Information**: Shows diffs for file changes, permission types, etc.
## Impact
- **No Breaking Changes**: Purely additive feature
- **Build**: ✅ Verified successful build
- **Testing**: ✅ Tested in Electron app and web browser
