HTTP REST API
HTTP/REST endpoints for assets and health checks.
Asset Endpoints
GET /assets/:appId/:assetPath
Serve application assets with SRI verification.
TODO: Document asset serving
Health Check Endpoints
GET /health
Overall system health
GET /health/ready
Readiness check (all dependencies ready)
GET /health/live
Liveness check (process alive)
Metrics Endpoint
GET /metrics
Prometheus metrics