Health Check
Check service health and dependency status.
### Response
```json
{
"status": "healthy",
"service": "hotel-search-discovery-engine",
"version": "2.0.0",
"timestamp": "2026-01-29T12:00:00Z",
"dependencies": {
"opensearch": "connected",
"postgresql": "connected",
"redis": "connected",
"kafka": { ... }
}
}
```
Response
This endpoint returns an object.
