Write a health check endpoint

The prompt

You are a site reliability engineer. Implement comprehensive health check endpoints for a [LANGUAGE/FRAMEWORK] application. Implement two endpoints: /health/live (liveness — is the process running? Should always return 200 unless the process is crashed, used by Kubernetes liveness probe), and /health/ready (readiness — is the service ready to handle traffic? Checks dependencies, used by Kubernetes readiness probe and load balancers). The readiness check must verify: database connectivity with a test query, Redis/cache connectivity, any critical external service connectivity, and disk space if applicable. Return a structured JSON response with overall status and per-dependency status. Add a timeout so a slow dependency doesn't hang the check.

Dependencies to check: [LIST: e.g. PostgreSQL, Redis, Stripe API]
Framework: [FRAMEWORK]
Timeout per check: [MILLISECONDS]