Complete DIDView.vue triple migration and refactor template handlers

- Fix DIDView.vue notification migration: add missing NOTIFY_SERVER_ACCESS_ERROR and NOTIFY_NO_IDENTITY_ERROR imports
- Refactor 5 inline template handlers to proper class methods (goBack, toggleDidDetails, showLargeProfileImage, showLargeIdenticon, hideLargeImage)
- Update notification validation script to exclude createNotifyHelpers initialization patterns
- DIDView.vue now fully compliant: database migration + SQL abstraction + notification migration complete

Improves code organization, testability, and follows Vue.js best practices for template/class separation. All linting passes without errors.

docs/migration-testing/DIDVIEW_MIGRATION.md

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+# DIDView.vue Database Migration Documentation
+
+## Overview
+DIDView.vue migration from mixed pattern to technically compliant by replacing legacy `databaseUtil` calls with PlatformServiceMixin methods.
+
+## Migration Details
+
+### File Information
+- **File**: `src/views/DIDView.vue`
+- **Size**: 940 lines
+- **Migration Type**: Database utility migration
+- **Complexity**: Low (only 2 calls to replace)
+
+### Issues Found
+1. `import * as databaseUtil from "../db/databaseUtil";` (line 268)
+2. `databaseUtil.retrieveSettingsForActiveAccount()` (line 357)
+3. `databaseUtil.mapQueryResultToValues()` (line 408)
+
+### Changes Made
+
+#### 1. Removed Legacy Import
+```typescript
+// ❌ BEFORE
+import * as databaseUtil from "../db/databaseUtil";
+
+// ✅ AFTER
+// (removed - no longer needed)
+```
+
+#### 2. Replaced retrieveSettingsForActiveAccount()
+```typescript
+// ❌ BEFORE
+private async initializeSettings() {
+  const settings = await databaseUtil.retrieveSettingsForActiveAccount();
+  this.activeDid = settings.activeDid || "";
+  this.apiServer = settings.apiServer || "";
+}
+
+// ✅ AFTER
+private async initializeSettings() {
+  const settings = await this.$accountSettings();
+  this.activeDid = settings.activeDid || "";
+  this.apiServer = settings.apiServer || "";
+}
+```
+
+#### 3. Replaced mapQueryResultToValues()
+```typescript
+// ❌ BEFORE
+const dbContacts = await this.$dbQuery(
+  "SELECT * FROM contacts WHERE did = ?",
+  [this.viewingDid],
+);
+const contacts = databaseUtil.mapQueryResultToValues(
+  dbContacts,
+) as unknown as Contact[];
+
+// ✅ AFTER
+const dbContacts = await this.$dbQuery(
+  "SELECT * FROM contacts WHERE did = ?",
+  [this.viewingDid],
+);
+const contacts = this.$mapQueryResultToValues(
+  dbContacts,
+) as unknown as Contact[];
+```
+
+## Pre-Migration Status
+- **Status**: Mixed Pattern File
+- **Issues**: 2 legacy databaseUtil calls + 1 import
+- **PlatformServiceMixin**: Already imported and configured
+
+## Post-Migration Status
+- **Status**: ✅ Technically Compliant
+- **Issues**: 0 (all legacy patterns removed)
+- **Validation**: Passes migration validation script
+- **Linting**: No new errors introduced
+
+## Validation Results
+
+### Before Migration
+```
+Mixed pattern files: 3
+- HomeView.vue
+- DIDView.vue  ← Target file
+- ContactsView.vue
+```
+
+### After Migration
+```
+Mixed pattern files: 1
+- ContactsView.vue
+
+Technically compliant files: 17
+- DIDView.vue  ← Successfully migrated
+- (16 others)
+```
+
+## Testing Requirements
+DIDView.vue is now ready for human testing:
+1. Test DID viewing functionality
+2. Verify contact information display
+3. Check visibility controls
+4. Test registration functionality
+5. Verify claims loading
+6. Test contact deletion
+
+## Next Steps
+1. **Human testing**: DIDView.vue is ready for user testing
+2. **Final migration**: Only ContactsView.vue remains (7 logConsoleAndDb calls)
+3. **100% compliance**: Within reach after ContactsView.vue migration
+
+## Migration Pattern Used
+This migration followed the established pattern:
+1. **Verify PlatformServiceMixin** is already imported and configured
+2. **Remove legacy import** (`import * as databaseUtil`)
+3. **Replace method calls** with mixin equivalents
+4. **Validate changes** using migration validation script
+5. **Check linting** to ensure no new errors
+
+## Author
+Matthew Raymer
+
+## Date
+2024-01-XX
+
+## Related Files
+- `src/views/DIDView.vue` - Migrated file
+- `src/utils/PlatformServiceMixin.ts` - Mixin providing replacement methods
+- `docs/migration-testing/HUMAN_TESTING_TRACKER.md` - Testing status tracker