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frontend/auth-config.js

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+window.API_CONFIG = { baseUrl: 'https://xxx.xxx.com' };
+
+/**
+ * Google OAuth Configuration
+ * Configure your Google OAuth Client ID here
+ * Access control is managed via the test users list in GCP Console
+ */
+
+const AUTH_CONFIG = {
+    // Client ID obtained from GCP Console
+    // Replace with your actual Client ID
+    clientId: 'xxxxxxxxxxxxxxxxxxxxxxxxxx.apps.googleusercontent.com',
+
+    // Authentication success callback
+    onSuccess: (user) => {
+        console.log('Authentication successful:', user.email);
+        // Additional logic can be added here, e.g. logging
+    },
+
+    // Authentication failure callback
+    onError: (error) => {
+        console.error('Authentication error:', error);
+        // Error handling logic can be added here
+    }
+};
+
+// Export configuration
+window.AUTH_CONFIG = AUTH_CONFIG;