feat: add Docker Compose setup with dev and prod configurations
- docker-compose.yml (dev): 3 services — postgres:16, backend (gradle
bootRun with JDK 21, spring-boot-devtools), frontend (Vite HMR on
node:24-alpine). Source volume mounts for live editing, Gradle cache
volume for fast rebuilds, pg_isready healthcheck on postgres.
- docker-compose.prod.yml (prod): same 3 services but with multi-stage
Dockerfiles. Backend: Gradle bootJar → JRE Alpine, non-root user.
Frontend: npm ci + vite build → nginx:alpine serving static dist/.
SSL termination via self-signed cert (auto-generated in entrypoint).
No source mounts, restart: unless-stopped, separate volumes.
- application-docker.yml: Spring profile overriding H2 with PostgreSQL
via env vars. Hostname "postgres" resolved by Docker Compose DNS.
- Vite proxy /api → backend:8080 for dev. nginx nginx.conf handles
/api proxy + SPA fallback + gzip + SSL in prod.
- AGENTS.md, README.md: architecture diagram, dev vs prod comparison
table, Spring profiles docs, file reference updates.
Joakim Mörling
4d449d54d0