- Add Docker HEALTHCHECK instruction probing /.well-known/healthcheck.json (30s interval, 5s timeout, 10s start period, 3 retries) for µPaaS container health verification - Create deploy/README.md with full µPaaS app configuration reference (app name, repo URL, branch, env vars, volumes, ports, production config) - Add Deployment section to README.md linking to deploy docs - Add deploy/ to .dockerignore (docs not needed in build context)
- Build stage: golang:1.24-alpine with vips-dev for CGO image libs - Runtime stage: alpine:3.21 with vips runtime only - Pass VERSION build arg for ldflags embedding - Add 'make docker' target to build image with git version
