feat: migrate QuickActionBvcEndView.vue to PlatformServiceMixin and notification helpers

- Replace databaseUtil.retrieveSettingsForActiveAccount() with $settings()
- Replace raw SQL "SELECT * FROM contacts" with $getAllContacts()
- Remove databaseUtil.mapQueryResultToValues() dependency
- Extract 6 notification messages to constants in notifications.ts
- Replace all $notify() calls with notify helper methods
- Add computed properties for template optimization (hasSelectedClaims, canSubmit, claimCountText)
- Add PlatformServiceMixin as mixin
- Update template to use computed properties for cleaner logic
- Add notification templates for confirmation success messages
- All linter errors resolved; only existing warnings remain

Migration: Database + SQL + Notifications + Template streamlining
Time: 45 minutes | Complexity: Medium | Issues: None
Human Testing: Pending

Security: Eliminates raw SQL queries, standardizes error handling
Performance: Optimized contact retrieval, reduced template complexity

src/views/ProjectViewView.vue

@@ -1339,7 +1339,7 @@ export default class ProjectViewView extends Vue {
     this.notify.confirm(
       NOTIFY_CONFIRM_CLAIM.text,
       async () => {
-        await this.confirmClaim(give);
+          await this.confirmClaim(give);
       },
       TIMEOUTS.MODAL,
     );