Fix Vue property conflicts in PlatformServiceMixin implementation

- Remove duplicate property declarations from TopMessage component
- Use (this as any) type assertion for mixin methods
- Resolves 'Data property already defined' warnings
- Fixes 'this.dbQuery is not a function' runtime errors

src/registerSQLWorker.js

@@ -29,7 +29,9 @@ let databaseService = null;
 async function getDatabaseService() {
   if (!databaseService) {
     // Dynamic import to prevent circular dependency
-    const { default: service } = await import("./services/AbsurdSqlDatabaseService");
+    const { default: service } = await import(
+      "./services/AbsurdSqlDatabaseService"
+    );
     databaseService = service;
   }
   return databaseService;