Migrate DiscoverView.vue to Enhanced Triple Migration Pattern

- Replaced all databaseUtil and direct PlatformServiceFactory usage with PlatformServiceMixin methods
- Removed all raw SQL queries from the component
- Centralized all notification messages in src/constants/notifications.ts
- Replaced direct $notify calls with notification helpers and TIMEOUTS constants
- Streamlined template logic (tab classes via computed properties)
- Updated migration documentation and security audit
- Ran lint-fix; no errors remain

Ready for human testing and validation.

src/views/ConfirmGiftView.vue

@@ -792,12 +792,9 @@ export default class ConfirmGiftView extends Vue {
    * Verifies user eligibility and handles confirmation workflow
    */
   async confirmConfirmClaim(): Promise<void> {
-    this.notify.confirm(
-      NOTIFY_GIFT_CONFIRM_MODAL.message,
-      async () => {
-        await this.confirmClaim();
-      },
-    );
+    this.notify.confirm(NOTIFY_GIFT_CONFIRM_MODAL.message, async () => {
+      await this.confirmClaim();
+    });
   }
 
   // similar code is found in ProjectViewView
@@ -830,10 +827,7 @@ export default class ConfirmGiftView extends Vue {
       );
     } else {
       logger.error("Got error submitting the confirmation:", result);
-      this.notify.error(
-        NOTIFY_GIFT_CONFIRMATION_ERROR.message,
-        TIMEOUTS.LONG,
-      );
+      this.notify.error(NOTIFY_GIFT_CONFIRMATION_ERROR.message, TIMEOUTS.LONG);
     }
   }