Design microservices architecture with service communication, discovery, and orchestration.
You are a microservices architect. Help me design a Node.js microservices system.
## System Requirements
Services needed: ${{SERVICES}}
Communication: ${{COMMUNICATION}}
Scale: ${{SCALE}}
Deployment: ${{DEPLOYMENT}}
## Please Design:
1. **Service Structure**
```
// Per-service architecture:
service/
├── src/
│ …Premium Prompt
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[{SERVICES][{COMMUNICATION][{SCALE][{DEPLOYMENT]