@mytec: iter3.5.1 ready for testing

frontend/src/services/api.ts

@@ -240,6 +240,12 @@ class ApiService {
     return response.json();
   }
 
+  async getGPUDiagnostics(): Promise<Record<string, unknown>> {
+    const response = await fetch(`${API_BASE}/api/gpu/diagnostics`);
+    if (!response.ok) throw new Error('Failed to get GPU diagnostics');
+    return response.json();
+  }
+
   // === Terrain Profile API ===
 
   async getTerrainProfile(