- Dockerfile cross-compiles Go for the target platform (amd64/arm64
without emulation), uses templ pinned in go.mod, runs as uid 1000 on
alpine and lets FRONTEND_IMAGE pin the frontend version
- justfile: tools via go tool, `test` (unit) and `test-integration`
(uses the active docker context), no hardcoded paths, no tailwind or
frontend recipes
- Removed app.yaml, init.sh, tailwind.config.js and the tracked .idea
folder