remove useless windows testing files, fix testing?

vitest.config.integration.ts

@@ -65,7 +65,10 @@ const finalConfig = mergeConfig(
         NODE_ENV: 'test',
         BASE_URL: 'https://example.com', // Use a standard domain to pass strict URL validation
         FRONTEND_URL: 'https://example.com',
-        PORT: '3000',
+        // Use a dedicated test port (3099) to avoid conflicts with production servers
+        // that might be running on port 3000 or 3001
+        TEST_PORT: '3099',
+        VITE_API_BASE_URL: 'http://localhost:3099/api',
       },
       // This setup script starts the backend server before tests run.
       globalSetup: './src/tests/setup/integration-global-setup.ts',