**Error Boundaries (VERIFIED COMPLETE)**
- Comprehensive ErrorBoundary component already implemented in components/common/ErrorBoundary.tsx
- Features: Recovery UI, error logging, isolated error boundaries, development error details
- Global error boundary in root layout
- Page-level error boundaries in AI Assistant and dashboard
- Error tracking integration ready for Sentry
**Touch Target Sizes (WCAG 2.5.5 Compliance)**
- Fixed user menu IconButton: increased from 32x32px to 44x44px minimum (medium size)
- Created lib/utils/touchTargets.ts with accessibility utilities:
* MINIMUM_TOUCH_TARGET = 44px (iOS/WCAG standard)
* RECOMMENDED_TOUCH_TARGET = 48px (Android Material Design)
* Helper functions: withTouchTarget(), validateTouchTarget()
* Component-specific guidelines for IconButton, Button, FAB, Chip, etc.
- Verified existing components meet standards:
* Quick action buttons: 140x140px ✓
* Bottom navigation: 64px height ✓
* Voice FAB: 56x56px ✓
* Voice button in tab bar: 48x48px ✓
**AI Conversation History (VERIFIED COMPLETE)**
- Comprehensive conversation management already implemented in AIChatInterface.tsx
- Features verified:
* Full conversation list with drawer (mobile) and sidebar (desktop)
* Load conversations from backend API
* Load individual conversation messages with scrolling
* Auto-scroll to bottom on new messages
* Conversation groups with collapsible organization
* Delete conversations with confirmation
* Context menu for conversation management
* Thinking messages animation
* Markdown rendering for AI responses
- Updated implementation-gaps.md to reflect completion status
**Documentation Updates**
- Updated docs/implementation-gaps.md:
* Marked Conversation History as COMPLETED
* Updated AI Assistant UI section with detailed implementation notes
* Moved remaining features (Streaming Responses, Suggested Follow-Ups, AI Response Feedback UI) to "Remaining Features" section
**Impact**
- Error boundaries prevent full app crashes and provide graceful recovery
- Touch target sizes meet WCAG 2.5.5 (AAA) and mobile platform guidelines
- Conversation history enables contextual AI interactions with full persistence
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>