Refactor project to transition from Rust backend to Node.js with Fastify; update Dockerfile and Docker configurations for new build process; enhance local development instructions in CONTRIBUTING.md; implement health checks in Docker Compose; update pnpm-lock.yaml with new dependencies for API and shared packages; revise README.md to reflect new stack and development setup.

docker-compose.yml

@@ -9,9 +9,15 @@ services:
       JWT_SECRET: ${JWT_SECRET:-change-me-in-production}
       ADMIN_USERNAME: ${ADMIN_USERNAME:-admin}
       ADMIN_PASSWORD_HASH: ${ADMIN_PASSWORD_HASH:-}
-      RUST_LOG: info
+      LOG_LEVEL: info
       CERT_CHECK_CRON: "0 */6 * * *"
       STATIC_DIR: /app/static
     volumes:
       - ./data:/data
     restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "node", "-e", "fetch('http://127.0.0.1:8080/health').then(r=>process.exit(r.ok?0:1)).catch(()=>process.exit(1))"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+      start_period: 15s