Set up health check endpoint

[ayshadogo]

Description:

• Install @nestjs/terminus
• Create src/health/health.controller.ts
• GET /health — returns DB and Redis connectivity status
• Used by Docker and load balancer health probes

---

[EmmanuelAdah]

I’d like to claim this issue. I will install @nestjs/terminus, create src/health/health.controller.ts, and set up GET /health with DB and Redis health indicators. The endpoint will return standard payload metadata (status, info, and details for database and redis) for Docker and load balancer probes. Please assign this to me, and I’ll open a PR shortly.