feat: Complete ContactQRScanFullView.vue Enhanced Triple Migration Pattern

- ContactQRScanFullView.vue: Human testing confirmed successful
- All 4 phases completed: database, SQL abstraction, notifications, template
- 28 minutes migration time (7% faster than high estimate)
- Zero regressions, production ready
- Updated progress: 61% (56/92 components migrated)
- Human testing: 100% success rate (33/33 passed)
- Next target: NewEditProjectView.vue identified

docs/migration-testing/CONTACTQRSCANFULLVIEW_MIGRATION.md

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+# ContactQRScanFullView.vue Migration Documentation
+
+## Migration Summary
+- **File**: `src/views/ContactQRScanFullView.vue`
+- **Migration Date**: 2025-07-09
+- **Migration Time**: 28 minutes (2 minutes under 30-minute high estimate)
+- **Status**: ✅ COMPLETED - Enhanced Triple Migration Pattern
+- **Human Testing**: ✅ PASSED
+- **Component Type**: Enhanced QR code scanner for contact information exchange
+
+## Pre-Migration Analysis
+- **File Size**: 636 lines
+- **Complexity**: Very High
+- **Database Patterns**: 5 major patterns identified
+- **Notification Calls**: 14 instances
+- **Raw SQL**: 2 queries to replace
+- **Template Complexity**: Complex CSS calculations and boolean logic
+
+## Migration Implementation
+
+### Phase 1: Database Migration ✅
+**Completed**: PlatformServiceMixin integration
+- Added `PlatformServiceMixin` to mixins array
+- Replaced `databaseUtil.retrieveSettingsForActiveAccount()` → `this.$accountSettings()`
+- Replaced `databaseUtil.mapQueryResultToValues()` → `this.$mapQueryResultToValues()`
+- Replaced `databaseUtil.generateInsertStatement()` → `this.$generateInsertStatement()`
+- Added comprehensive JSDoc documentation to all methods
+
+### Phase 2: SQL Abstraction ✅
+**Completed**: Service layer abstraction
+- Replaced raw SQL query `"SELECT * FROM contacts WHERE did = ?"` → `this.$getContact(contact.did)`
+- Replaced manual insert statement generation → `this.$insertContact(contact)`
+- Eliminated all raw SQL patterns for cleaner abstractions
+
+### Phase 3: Notification Migration ✅
+**Completed**: Centralized notification constants
+- Removed `NotificationIface` import and type annotation
+- Imported 16 notification constants from `@/constants/notifications`
+- Added notification helper system using `createNotifyHelpers(this.$notify)`
+- Replaced all 14 `$notify` calls with helper methods and constants
+- Used proper timeout constants: `QR_TIMEOUT_LONG`, `QR_TIMEOUT_MEDIUM`, `QR_TIMEOUT_STANDARD`
+
+### Phase 4: Template Streamlining ✅
+**Completed**: Computed property extraction
+- Created 6 computed properties for complex logic:
+  - `qrContainerClasses`: QR code container CSS classes
+  - `cameraFrameClasses`: Camera frame CSS classes  
+  - `mainContentClasses`: Main content container CSS classes
+  - `hasEthrDid`: User has ETHR DID boolean logic
+  - `hasAnyDid`: User has any DID boolean logic
+  - `shouldShowNameWarning`: Show name setup warning boolean logic
+- Updated template to use computed properties instead of inline expressions
+
+## Key Improvements
+
+### Performance Enhancements
+- Service layer abstractions provide better caching
+- Computed properties eliminate repeated calculations
+- Centralized notification system reduces overhead
+
+### Code Quality
+- Eliminated inline template logic
+- Comprehensive JSDoc documentation added
+- Proper TypeScript integration maintained
+- Clean separation of concerns
+
+### Maintainability
+- Centralized notification constants
+- Reusable computed properties
+- Service-based database operations
+- Consistent error handling patterns
+
+## Validation Results
+- ✅ TypeScript compilation passes
+- ✅ ESLint validation passes (0 errors, 1 warning about `any` type)
+- ✅ All unused imports removed
+- ✅ Code formatting corrected
+- ✅ Functional testing completed
+
+## Component Functionality
+
+### Core Features
+- QR code generation for user's contact information
+- Real-time QR code scanning with camera access
+- JWT-based and CSV-based contact format support
+- Debounced duplicate scan prevention (5-second timeout)
+- Camera permissions and lifecycle management
+- Contact validation and duplicate detection
+- Visibility settings for contact sharing
+
+### Technical Features
+- Cross-platform camera handling (web/mobile)
+- Multiple QR code format support
+- Contact deduplication logic
+- Real-time error feedback
+- Secure contact information exchange
+- Privacy-preserving data handling
+
+## Testing Status
+- **Technical Compliance**: ✅ PASSED
+- **Human Testing**: ✅ PASSED
+- **Regression Testing**: ✅ PASSED
+- **Performance**: ✅ NO DEGRADATION
+
+## Migration Metrics
+- **Speed**: 28 minutes (7% faster than high estimate)
+- **Quality**: Excellent - Zero regressions
+- **Coverage**: 100% - All patterns migrated
+- **Validation**: 100% - All checks passed
+
+## Notes
+- Component demonstrates complex but well-structured QR scanning implementation
+- Service layer abstractions significantly improved code organization
+- Template streamlining made the component more maintainable
+- Notification system integration improved user experience consistency
+
+## Next Steps
+- Component ready for production use
+- No additional work required
+- Can serve as reference for similar QR scanning components