Bootstrap Places Service with Well Known Components

- [x] Rename all references
- [x] Add environment variables defaults
- [x] Verify yarn scripts
- [x] Review and enhance Docker setup
- [x] Verify existing GitHub Actions CI
- [x] Confirm healthcheck endpoint
- [x] Start the service with `yarn dev`.
- [x] Request `GET /status` locally.
- [x] Verify an HTTP 200 response.
- [x] Verify the expected JSON payload (e.g., `{ "status": "ok" }`).
- [x] Add example curl + response in the README (“Healthcheck” section).