Add Curl to STUF Docker Images to Support Standardised Health Checks

[ashleythedeveloper]

Downstream services and repositories often rely on simple HTTP-based health checks for readiness and liveness. At present, the STUF API and SPA (assuming) images do not include curl, which makes it harder for consumers to perform lightweight health checks without creating custom wrappers or extending the base images.

Acceptance Criteria:

• Add curl to the STUF API image via a lightweight extension Dockerfile.
• Add curl to the STUF SPA image using the same pattern (if needed).
• Confirm that downstream consumers can perform simple checks, for example:
  ["CMD", "curl", "-fsS", "http://127.0.0.1:9000/health/ready"].