Test all backend services and monitor data flow
graph TD FE["🖥️ Frontend
Dashboard"] AUTH["🔐 Auth Service
Port 8081"] PRODUCT["📦 Product Service
Port 8082"] ORDER["🛒 Order Service
Port 8083"] DB1["🗄️ Auth DB
MongoDB"] DB2["🗄️ Product DB
MongoDB"] DB3["🗄️ Order DB
MongoDB"] FE --> AUTH FE --> PRODUCT FE --> ORDER ORDER --> PRODUCT AUTH --> DB1 PRODUCT --> DB2 ORDER --> DB3 style FE fill:#667eea,stroke:#333,stroke-width:2px,color:#fff style AUTH fill:#10b981,stroke:#333,stroke-width:2px,color:#fff style PRODUCT fill:#f59e0b,stroke:#333,stroke-width:2px,color:#fff style ORDER fill:#ef4444,stroke:#333,stroke-width:2px,color:#fff style DB1 fill:#8b5cf6,stroke:#333,stroke-width:2px,color:#fff style DB2 fill:#8b5cf6,stroke:#333,stroke-width:2px,color:#fff style DB3 fill:#8b5cf6,stroke:#333,stroke-width:2px,color:#fff