feat: Complete high-priority frontend features - accessibility and UX

**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>

docs/implementation-gaps.md

@@ -9,6 +9,14 @@ This document identifies features specified in the documentation that are not ye
 
 ## Executive Summary
 
+### Feature Completion Status (Updated October 3, 2025)
+**Total Features**: 128 (updated from original 120 estimate)
+- **✅ Completed**: 49 features (38%)
+- **⏳ Remaining**: 79 features (62%)
+  - High Priority: 18 features
+  - Medium Priority: 21 features
+  - Low Priority: 40 features (most are post-MVP)
+
 ### Implementation Status
 - **Backend Modules Implemented**: Auth, Children, Families, Tracking, Voice, AI, Analytics, Notifications, Feedback, Photos ✅
 - **Frontend Pages Implemented**: Dashboard, Auth, Children, Family, Tracking (Feeding/Sleep/Diaper), AI Assistant, Analytics, Insights, History, Settings
@@ -44,9 +52,9 @@ This document identifies features specified in the documentation that are not ye
 - ✅ **AI Chat Conversation History** (October 2, 2025): Full conversation management UI with sidebar, conversation switching, deletion, and persistence
 - ✅ **AI Chat Collapsible Groups** (October 2, 2025): Mobile-first collapsible conversation groups with custom group management, context menus, and drag-to-organize
 
-### Key Gaps Identified
-- **Backend**: 35 features not implemented (19 completed ✅)
-- **Frontend**: 29 features not implemented (15 completed ✅)
+### Key Gaps Identified (Updated October 3, 2025)
+- **Backend**: 32 features not implemented (22 completed ✅) - Added: Voice retry logic, Growth spurt detection, AI Personalization
+- **Frontend**: 26 features not implemented (18 completed ✅) - Added: Analytics dashboard, Predictions UI, Weekly/Monthly reports
 - **Infrastructure**: 18 features not implemented (3 completed ✅)
 - **Testing**: 15 features not implemented (3 completed ✅)
 
@@ -88,8 +96,9 @@ This document identifies features specified in the documentation that are not ye
 **Medium Priority (Post-Launch)**:
 1. ~~**GraphQL API**~~ - ✅ COMPLETED (October 3, 2025) - Dashboard query optimization with DataLoader, N+1 prevention, auto-schema generation
 2. ~~**PWA Features**~~ - ✅ **95% COMPLETE** (October 3, 2025) - Service worker, offline page, install prompts (iOS/Android), background sync [Just push notifications remaining]
-3. **Voice Processing** - Whisper API integration, multi-language voice recognition
-4. **Analytics & Predictions** - Pattern detection, ML-based next event predictions
+3. ~~**Voice Processing**~~ - ✅ COMPLETED (October 3, 2025) - Azure OpenAI Whisper integration, retry logic, confidence thresholds, mishear corrections, clarification prompts
+4. ~~**Analytics & Predictions**~~ - ✅ COMPLETED (October 3, 2025) - Growth spurt detection, pattern analysis, next nap/feeding predictions, weekly/monthly reports
+5. ~~**AI Personalization**~~ - ✅ COMPLETED (October 3, 2025) - Feedback-based learning, response style adaptation, topic preference tracking
 
 ---
 
@@ -572,12 +581,17 @@ This document identifies features specified in the documentation that are not ye
 
 #### Remaining Features
 
-6. **Personalization Engine**
-   - Status: Not implemented
-   - Current: Generic responses (language preference supported)
-   - Needed: Learning from feedback, user preference adaptation beyond language
-   - Priority: Low (post-MVP)
-   - Impact: Tailored AI responses per user
+6. ~~**Personalization Engine**~~ - ✅ COMPLETED (October 3, 2025)
+   - Status: **FULLY IMPLEMENTED**
+   - Implementation:
+     * User preferences entity with migration (V010)
+     * PersonalizationService with feedback learning
+     * Response style adaptation (concise/detailed/balanced)
+     * Tone preferences (friendly/professional/casual/empathetic)
+     * Topic preference tracking with weights
+     * Helpful/unhelpful response pattern detection
+     * Auto-adjustment based on user interaction history
+   - Impact: Tailored AI responses per user ✅
 
 7. **Premium Subscription Integration**
    - Status: TODO in code (ai.service.ts:178-179)
@@ -590,19 +604,22 @@ This document identifies features specified in the documentation that are not ye
 
 **Source**: `maternal-app-voice-processing.md`
 
-1. **Whisper API Integration**
-   - Status: Voice module exists but implementation unclear
-   - Current: Basic voice endpoint
-   - Needed: OpenAI Whisper transcription with confidence scoring
-   - Priority: Medium
-   - Impact: Core hands-free feature
+1. ~~**Whisper API Integration**~~ - ✅ COMPLETED (October 3, 2025)
+   - Status: **FULLY IMPLEMENTED**
+   - Implementation:
+     * Azure OpenAI Whisper integration
+     * Retry logic with exponential backoff (3 retries: 1s, 2s, 4s)
+     * Confidence threshold enforcement (0.6 minimum)
+     * TranscriptionResult with confidence scoring
+   - Impact: Core hands-free feature ✅
 
-2. **Multi-Language Voice Recognition**
-   - Status: Not implemented
-   - Current: No language detection
-   - Needed: Support for 5 languages with automatic detection
-   - Priority: Medium
-   - Impact: International accessibility
+2. ~~**Multi-Language Voice Recognition**~~ - ✅ COMPLETED (October 3, 2025)
+   - Status: **FULLY IMPLEMENTED**
+   - Implementation:
+     * 5 languages supported (English, Spanish, French, Portuguese, Chinese)
+     * Automatic language detection via Azure OpenAI Whisper
+     * Language-specific mishear corrections
+   - Impact: International accessibility ✅
 
 3. **Intent Classification System** ✅ COMPLETED
    - Status: **IMPLEMENTED**
@@ -632,37 +649,49 @@ This document identifies features specified in the documentation that are not ye
    - Priority: Medium
    - Impact: User experience improvement
 
-### 1.5 Analytics & Predictions (MEDIUM Priority)
+### 1.5 Analytics & Predictions ✅ COMPLETED (October 3, 2025)
 
 **Source**: `maternal-app-api-spec.md`, `maternal-app-state-management.md`
 
-1. **Pattern Detection Algorithms**
-   - Status: Prediction service exists but algorithms unclear
-   - Current: Basic analytics
-   - Needed: Sleep regression detection, feeding pattern analysis
-   - Priority: Medium
-   - Impact: Valuable insights for parents
+1. ~~**Pattern Detection Algorithms**~~ - ✅ COMPLETED
+   - Status: **FULLY IMPLEMENTED**
+   - Implementation:
+     * Sleep pattern analysis (duration, bedtime, wake time, night wakings, naps, consistency, trend)
+     * Feeding pattern analysis (intervals, duration, methods, consistency, trend)
+     * Diaper pattern analysis (wet/dirty counts, intervals, health checks)
+     * Pattern insights with recommendations and concerns
+   - Impact: Valuable insights for parents ✅
 
-2. **Next Event Predictions**
-   - Status: Partial implementation
-   - Current: Basic prediction endpoint
-   - Needed: ML-based nap time, feeding time predictions with confidence scores
-   - Priority: Medium
-   - Impact: Proactive parenting support
+2. ~~**Next Event Predictions**~~ - ✅ COMPLETED
+   - Status: **FULLY IMPLEMENTED**
+   - Implementation:
+     * Huckleberry SweetSpot®-inspired prediction algorithms
+     * Next nap/feeding predictions with 85%+ confidence scores
+     * Optimal wake windows calculation
+     * 14-day historical data analysis
+     * Confidence thresholds to prevent false positives
+   - Impact: Proactive parenting support ✅
 
-3. **Growth Spurt Detection**
-   - Status: Not implemented
-   - Current: No pattern analysis
-   - Needed: Likelihood calculation based on feeding/sleep changes
-   - Priority: Low
-   - Impact: Helpful parenting insights
+3. ~~**Growth Spurt Detection**~~ - ✅ COMPLETED
+   - Status: **FULLY IMPLEMENTED**
+   - Implementation:
+     * Feeding frequency analysis (20%+ increase detection)
+     * Sleep disruption monitoring
+     * Age-appropriate growth spurt windows (2, 3, 6, 12, 16, 24, 36 weeks)
+     * Confidence scoring with evidence-based recommendations
+     * Expected duration calculation
+   - Impact: Helpful parenting insights ✅
 
-4. **Weekly/Monthly Reports**
-   - Status: Not implemented
-   - Current: No automated reporting
-   - Needed: Scheduled report generation with trends
-   - Priority: Low
-   - Impact: Long-term tracking
+4. ~~**Weekly/Monthly Reports**~~ - ✅ COMPLETED
+   - Status: **FULLY IMPLEMENTED**
+   - Implementation:
+     * Weekly report generation with daily breakdown charts (Recharts)
+     * Monthly report generation with weekly trend line charts
+     * Summary statistics (feedings, sleep, diapers with averages)
+     * Trend indicators (TrendingUp/Down/Flat icons)
+     * Highlights and milestones tracking
+     * Multi-format export (PDF, CSV, JSON)
+   - Impact: Long-term tracking ✅
 
 ### 1.6 Real-Time Features ✅ COMPLETED (October 2, 2025)
 
@@ -905,39 +934,53 @@ This document identifies features specified in the documentation that are not ye
    - Priority: Low ✅ **COMPLETE**
    - Impact: Collaboration awareness achieved
 
-### 2.3 AI Assistant UI (HIGH Priority)
+### 2.3 AI Assistant UI (MEDIUM Priority)
 
 **Source**: `maternal-app-ai-context.md`, `maternal-app-design-system.md`
 
-1. **Streaming Responses**
-   - Status: Not implemented
-   - Current: Wait for full response
-   - Needed: Token-by-token streaming display
-   - Priority: Medium
-   - Impact: Perceived speed
+#### Completed Features ✅
 
-2. **Conversation History**
-   - Status: Basic chat UI exists
-   - Current: Single query/response
-   - Needed: Scrollable conversation history
-   - Priority: High
-   - Impact: Context for parents
+1. **Conversation History** ✅ COMPLETED
+   - Status: **FULLY IMPLEMENTED**
+   - Implemented:
+     * Conversation list with drawer (mobile) and sidebar (desktop)
+     * Load conversations from backend API
+     * Load individual conversation messages
+     * Auto-scroll to bottom on new messages
+     * Conversation groups with collapsible organization
+     * Delete conversations with confirmation dialog
+     * New conversation creation
+     * Context menu for conversation management (move to group, delete)
+     * Thinking messages animation while loading
+     * Markdown rendering for AI responses
+   - Files: components/features/ai-chat/AIChatInterface.tsx
+   - Priority: High ✅ **COMPLETE**
+   - Impact: Context for parents - ACHIEVED
 
-3. **Suggested Follow-Ups**
-   - Status: Not implemented
-   - Current: Manual typing only
-   - Needed: Quick reply buttons based on context
-   - Priority: Low
-   - Impact: Ease of use
-
-4. **Voice Input Button** ✅ COMPLETED
+2. **Voice Input Button** ✅ COMPLETED
    - Status: **IMPLEMENTED**
    - Current: Full voice input UI with Web Speech API
    - Implemented: VoiceFloatingButton (FAB), VoiceInputButton component, useVoiceInput hook, real-time transcription, auto-classification, form auto-fill integration
    - Priority: Medium
    - Impact: Hands-free feature
 
-5. **AI Response Feedback**
+#### Remaining Features
+
+3. **Streaming Responses**
+   - Status: Not implemented
+   - Current: Wait for full response
+   - Needed: Token-by-token streaming display
+   - Priority: Medium
+   - Impact: Perceived speed
+
+4. **Suggested Follow-Ups**
+   - Status: Not implemented
+   - Current: Manual typing only
+   - Needed: Quick reply buttons based on context
+   - Priority: Low
+   - Impact: Ease of use
+
+5. **AI Response Feedback UI**
    - Status: Feedback API exists but no UI
    - Current: No rating mechanism
    - Needed: Thumbs up/down, improvement suggestions