Implemented comprehensive frontend localization infrastructure supporting
5 languages (English, Spanish, French, Portuguese, Chinese) with measurement
unit preferences (Metric/Imperial). This lays the foundation for international
user support.
**Core Infrastructure:**
- Installed i18next, react-i18next, i18next-browser-languagedetector
- Created I18nProvider component integrated into app layout
- Configured i18next with language detection and localStorage persistence
- Created 35 translation files (5 languages × 7 namespaces)
**Translation Namespaces:**
- common: App-wide UI elements, navigation, actions
- tracking: Activity tracking (feeding, sleep, diaper, milestones)
- ai: AI assistant chat interface
- auth: Authentication flows (login, signup, password reset)
- settings: Settings and preferences
- onboarding: Onboarding flow
- errors: Error messages and validation
**Custom Hooks:**
- useTranslation: Type-safe translation wrapper
- useLocale: Language and measurement system management
- useFormatting: Date, time, number, and unit formatting
**Measurement Unit Support:**
- Created unit conversion utilities (weight, height, temperature, volume)
- Metric: kg, cm, °C, ml
- Imperial: lb, in, °F, oz
- Bidirectional conversion functions
**UI Components:**
- LanguageSelector: Dropdown to change app language
- MeasurementUnitSelector: Toggle between Metric/Imperial
- Integrated both into Settings page Preferences section
**Next Steps (Remaining):**
- Add measurement preferences to backend user schema
- Create onboarding flow with language/measurement selection
- Apply translations to existing components (dashboard, tracking forms)
- Implement multi-language AI responses
- Add professional translations (currently using basic translations)
**File Highlights:**
- lib/i18n/config.ts: i18next configuration
- hooks/useFormatting.ts: Formatting utilities with locale support
- lib/utils/unitConversion.ts: Unit conversion logic
- components/settings/*Selector.tsx: Language and measurement selectors
- locales/*/: Translation files for 5 languages
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Co-Authored-By: Claude <noreply@anthropic.com>
Add complete GraphQL mutation support for activity tracking and child management:
**Activity Mutations:**
- createActivity: Create new activities (feeding, sleep, diaper, medication)
- updateActivity: Update existing activities
- deleteActivity: Delete activities
**Child Mutations:**
- createChild: Add new children to families
- updateChild: Update child information
- deleteChild: Soft delete children
**Implementation Details:**
- Created GraphQL input types (CreateActivityInput, UpdateActivityInput, CreateChildInput, UpdateChildInput)
- Implemented ActivityResolver with full CRUD mutations
- Implemented ChildResolver with full CRUD mutations
- Registered resolvers in GraphQL module with TrackingService and ChildrenService
- Auto-generated GraphQL schema with all mutations
- All mutations protected with GqlAuthGuard for authentication
- Support for JSON metadata fields and Gender enum
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Co-Authored-By: Claude <noreply@anthropic.com>
Fixed two critical GraphQL schema issues preventing dashboard data loading:
**Backend Changes:**
- Changed child.birthDate from DATE to TIMESTAMP type in entity and database
- Updated TypeORM entity (child.entity.ts:23)
- Migrated database column: ALTER TABLE children ALTER COLUMN birth_date TYPE TIMESTAMP
- Added JSON scalar support for activity metadata field
- Installed graphql-type-json package
- Created JSONScalar (src/graphql/scalars/json.scalar.ts)
- Updated Activity.metadata from String to GraphQLJSON type
- Auto-generated schema.gql with JSON scalar definition
**Frontend Changes:**
- Fixed Apollo Client token storage key mismatch
- Changed from 'access_token' to 'accessToken' to match tokenStorage utility
- Enhanced dashboard logging for debugging GraphQL queries
**Database Migration:**
- Converted children.birth_date: DATE → TIMESTAMP
- Preserves existing data (2023-06-01 → 2023-06-01 00:00:00)
Resolves errors:
- "Expected DateTime.serialize() to return non-nullable value, returned: null"
- "String cannot represent value: { ... }" for activity metadata
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Co-Authored-By: Claude <noreply@anthropic.com>
Frontend Compliance Features:
- Created compliance API client (data export, account deletion, deletion status)
- Added DataExport component with download functionality
- Added AccountDeletion component with 30-day grace period UI
- Updated Settings page with Privacy & Compliance sections
COPPA Age Verification:
- Added date of birth field to registration
- Age calculation with COPPA compliance (under 13 blocked)
- Parental email and consent for users 13-17
- Dynamic form validation based on age
Privacy & Terms:
- Separate checkboxes for Terms of Service and Privacy Policy
- Required acceptance for registration
- Links to policy pages
Completes GDPR Right to Data Portability and Right to Erasure.
Completes COPPA parental consent requirements.
Issue: MUI v7 deprecated the old Grid API with 'item', 'xs', 'sm', 'md' props.
Warnings: 'The item prop has been removed', 'The xs/sm/md props have been removed'
Solution: Migrate to Grid2 component with new 'size' prop:
- Changed Grid import to Grid2 (aliased as Grid)
- Removed 'item' prop from all Grid components
- Changed xs={6} sm={4} md={2} to size={{ xs: 6, sm: 4, md: 2 }}
Reference: https://mui.com/material-ui/migration/upgrade-to-grid-v2/
All Grid warnings now resolved.
Issue: After MUI v7 upgrade, Quick Actions and Today's Summary
cards were not evenly sized - they were content-sized instead.
Solution:
- Quick Actions: Added height: '100%' and flexbox layout to ensure
all cards are the same height within each row
- Today's Summary stats: Added minHeight: '120px' with flexbox to
ensure consistent card heights
Result: Both sections now have evenly spaced, consistent layouts
regardless of content length.
## Backend Changes
- Update tracking.service.ts getDailySummary to calculate actual counts
- Import ActivityType enum for proper type comparisons
- Calculate feedingCount, sleepTotalMinutes, diaperCount, medicationCount
- Sleep duration now correctly calculated from startedAt/endedAt timestamps
## Frontend API Changes
- Add medicationCount to DailySummary interface
- Extract endTime from metadata and send as endedAt to backend
- Enables proper sleep duration tracking with start/end times
## Homepage Updates
- Add Medicine and Activities quick action buttons
- Update summary grid from 3 to 4 columns (responsive layout)
- Add medication count display with MedicalServices icon
- Improve grid responsiveness (xs=6, sm=3)
- Replace Analytics button with Activities button
## New Activities Page
- Create /activities page to show recent activity history
- Display last 7 days of activities with color-coded icons
- Show smart timestamps (Today/Yesterday/date format)
- Activity-specific descriptions (feeding amount, sleep duration, etc.)
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Co-Authored-By: Claude <noreply@anthropic.com>
Added new tracking pages:
- Medicine tracker: track medication name, dosage, unit, route, and reason
- Activity tracker: track play, exercise, walks, music, reading, tummy time, etc.
- Both pages follow existing tracker patterns with recent activities list
Voice command improvements:
- Updated voice classification to support medicine and activity types
- Added detailed extraction fields for medicine (medicineName, dosage, unit, route, reason)
- Added detailed extraction fields for activity (activityType, duration, description)
- Enhanced unknown intent dialog with manual tracker selection
- Updated tracker options to match implemented pages (removed milestone)
Backend changes:
- Added MEDICINE and ACTIVITY to ActivityType enum
- Created migration V013 to add medicine/activity to database CHECK constraint
- Updated voice service prompts to include medicine and activity extraction
Frontend changes:
- Created /track/medicine page with full CRUD operations
- Created /track/activity page with full CRUD operations
- Added Medicine card to /track page with MedicalServices icon
- Updated VoiceFloatingButton unknown dialog with 4 tracker options
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Co-Authored-By: Claude <noreply@anthropic.com>
Fixed multiple issues with voice command workflow:
**Status Transition Fixes:**
- Fixed infinite loop in status update useEffect by checking if status actually needs to change
- Status now properly transitions: listening → understanding → review/close
- Added debug logging to track status changes
**UI Bug Fixes:**
- Fixed crash in diaper tracker when conditions field is undefined (voice-created activities)
- Auto-close dialog when classification returns "unknown" type
- Added optional chaining for conditions.join() in getDiaperDetails
**Changes:**
- VoiceFloatingButton: Prevent setting same status repeatedly
- VoiceFloatingButton: Close dialog on unknown classification
- Diaper page: Handle missing conditions field gracefully
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Fix login endpoint to return families as array of objects instead of strings
- Update auth interface to match /auth/me endpoint structure
- Add silence detection to voice input (auto-stop after 1.5s)
- Add comprehensive status messages to voice modal (Listening, Understanding, Saving)
- Unify voice input flow to use MediaRecorder + backend for all platforms
- Add null checks to prevent tracking page crashes from invalid data
- Wait for auth completion before loading family data in HomePage
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Add URL parameter reading to diaper tracking page for voice-extracted data
- Add comprehensive server-side logging in voice controller and service
- Log request type (Web Speech API vs MediaRecorder), input text/audio, GPT calls, and classification results
- Enable automatic form pre-filling when voice commands navigate to tracking pages
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Co-Authored-By: Claude <noreply@anthropic.com>
- Remove temperature parameter from GPT-5-mini activity extraction (not supported)
- Add classification state to useVoiceInput hook to avoid duplicate API calls
- Prevent infinite loop in VoiceFloatingButton by tracking lastClassifiedTranscript
- Use classification from backend directly instead of making second request
- iOS Safari now successfully transcribes with Azure Whisper and classifies with GPT-5-mini
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Add LOGIN_BIOMETRIC to AuditAction enum
- Import AuditAction and EntityType in AuthService
- Fix loginWithExternalAuth return type to match AuthResponse interface
- Update biometric API client to use correct response structure
- Update login page to access tokens from nested data structure
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Add biometric authentication button with Face ID/Touch ID/Windows Hello support
- Check WebAuthn support and platform authenticator availability on mount
- Handle biometric login flow with proper error handling
- Show biometric button only when device supports it
- Add loading states and user-friendly error messages
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Create biometric API client with WebAuthn methods
- Add BiometricSettings component for credential management
- Support Face ID, Touch ID, Windows Hello enrollment
- Display list of enrolled credentials with metadata
- Add/remove/rename biometric credentials
- Check browser and platform authenticator support
- Integrate into settings page with animations
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Implements user interface for viewing and managing active sessions:
Session Management Features:
- SessionsManagement component with full session management UI
- List all active sessions with device information
- Platform-specific icons (Computer, Phone, Tablet)
- Current session indicator with green chip
- Session details: device fingerprint, platform, last used, created date
- Revoke individual sessions with confirmation dialog
- Revoke all sessions except current with bulk action
- Real-time session count display
User Experience:
- Visual device type indicators
- Human-readable time formatting (e.g., "2 hours ago")
- Current session clearly marked and protected from removal
- Warning dialogs before revoking sessions
- Success/error feedback with alerts
- Loading states for all operations
- Empty state handling
API Integration:
- Sessions API client in lib/api/sessions.ts
- Get all sessions
- Get session count
- Revoke specific session
- Revoke all sessions except current
- Proper error handling and user feedback
Settings Page Integration:
- Added Sessions Management section
- Placed after Security/MFA settings
- Animated transitions with staggered delays
- Maintains consistent settings page layout
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Implements MFA verification dialog for login flow:
MFA Verification Features:
- MFAVerificationDialog component for code entry
- TOTP code input (6-digit authenticator app code)
- Email code input with auto-send on dialog open
- Backup code support mentioned in help text
- Resend email code functionality
- Auto-focus on code input field
- Large, centered code input for easy entry
- Real-time validation (6-digit code required)
Login Flow Integration:
- Detect MFA requirement from login API error
- Show MFA dialog when MFA is enabled for user
- Handle MFA verification success with token storage
- Allow cancellation to retry login
- Seamless transition after successful verification
User Experience:
- Email codes sent automatically
- Visual feedback for code sending/verification
- Error alerts for invalid codes
- Loading states for all async operations
- Clean, focused dialog design
- Tip about backup codes
Implementation Details:
- Integrated with existing login page
- Error handling for MFA-required responses
- Token storage after MFA verification
- Navigation after successful MFA
- Support for both TOTP and Email MFA methods
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Co-Authored-By: Claude <noreply@anthropic.com>
Implemented comprehensive rate limiting for API security:
- Created custom Next.js-native rate limiter using in-memory store
- Added 5 rate limit configurations:
- authLimiter: 5 requests/15min for login/register/password-reset
- aiLimiter: 10 requests/hour for AI assistant queries
- trackingLimiter: 30 requests/min for activity tracking
- readLimiter: 100 requests/min for read-only endpoints
- sensitiveLimiter: 3 requests/hour for sensitive operations
- Applied rate limiting to endpoints:
- /api/auth/login, /api/auth/register, /api/auth/password-reset
- /api/ai/chat
- /api/tracking/feeding (GET and POST)
- Rate limit responses include standard headers:
- RateLimit-Limit, RateLimit-Remaining, RateLimit-Reset
- Retry-After header with seconds until reset
- Tested with 7 sequential requests - first 5 passed, last 2 blocked with 429
Note: Current implementation uses in-memory store. For production with
multiple instances, migrate to Redis-backed storage for distributed
rate limiting.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Created /api/health endpoint that returns 200 OK to allow Redux
network detection middleware to properly check connectivity status.
Without this endpoint, the app was showing as offline even when
connected to the internet.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Added Redux Provider to app layout and simplified Redux store to work
properly with Next.js SSR.
**Changes:**
- Added ReduxProvider wrapper to root layout (app/layout.tsx)
- Fixed ReduxProvider TypeScript type (React.ReactNode)
- Simplified store configuration by removing @redux-offline package
- Removed packages incompatible with SSR:
- @redux-offline/redux-offline
- redux-persist
- localforage
- Re-added NetworkStatusIndicator to main page (now works with Redux)
- Kept custom offline middleware and sync middleware for offline-first functionality
**Why:**
The @redux-offline package and localforage try to access browser APIs (IndexedDB,
localStorage) during SSR, causing "No available storage method found" errors.
Our custom offline middleware provides the same functionality without SSR issues.
**Result:**
Redux store now works correctly with:
- Network status detection
- Offline action queuing
- Custom sync middleware
- Activities and children slices with optimistic updates
Next step: Can add redux-persist back with proper SSR guards if needed.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
The NetworkStatusIndicator component requires Redux Provider to be set up,
which is not yet integrated in the app. Removed it from the main page to
prevent "could not find react-redux context value" errors.
NetworkStatusIndicator will be added back once Redux Provider is properly
configured in the app root.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Implemented React error boundaries to catch and handle errors gracefully:
**Core Error Handling Components:**
- Created ErrorBoundary class component with error catching and logging
- Created specialized fallback UIs (MinimalErrorFallback, DataErrorFallback,
ComponentErrorFallback, FormErrorFallback, ChartErrorFallback, ImageErrorFallback)
- Added withErrorBoundary HOC for easy component wrapping
- Created errorLogger service with Sentry integration placeholder
**Error Logging Service (errorLogger.ts):**
- Centralized error logging with severity levels (FATAL, ERROR, WARNING, INFO, DEBUG)
- Context enrichment (URL, userAgent, timestamp, environment)
- Local storage of last 10 errors in sessionStorage for debugging
- User context management (setUser, clearUser)
- Breadcrumb support for debugging trails
**App Integration:**
- Wrapped root layout with top-level ErrorBoundary for catastrophic errors
- Added NetworkStatusIndicator to main page for offline sync visibility
- Wrapped daily summary section with isolated DataErrorFallback
- Added error boundary to AI assistant page with ComponentErrorFallback
- Wrapped feeding tracking form with FormErrorFallback using withErrorBoundary HOC
- Protected analytics charts with isolated ChartErrorFallback boundaries
**Error Recovery Features:**
- Isolated error boundaries prevent cascade failures
- Retry buttons on all fallback UIs
- Error count tracking with user warnings
- Development-mode error details display
- Automatic error logging to service (when Sentry integrated)
Next: Integration with Sentry for production error tracking
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Backend changes:
- Add password reset token database migration (V011)
- Create email service with Mailgun integration (EU/US regions)
- Implement password reset flow with secure token generation
- Add email verification endpoints and logic
- Create beautiful HTML email templates for reset and verification
- Add password reset DTOs with validation
- Update User entity with email verification fields
Frontend changes:
- Create forgot password page with email submission
- Create reset password page with token validation
- Add email verification banner component
- Integrate verification banner into main dashboard
- Add password requirements and validation UI
Features:
- Mailgun API ready for EU and US regions
- Secure token expiration (1h for reset, 24h for verification)
- Rate limiting on resend (2min interval)
- Protection against email enumeration
- IP address and user agent tracking
- Token reuse prevention
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
