feat: update docker-compose with configurable environment variables

docker-compose.yml

@@ -8,22 +8,26 @@ services:
     container_name: pnger
     image: pnger:latest
     ports:
-      - "8080:3000"
+      - "${HOST_PORT:-8080}:3000"
     environment:
-      - NODE_ENV=production
+      - NODE_ENV=${NODE_ENV:-production}
       - PORT=3000
-      - MAX_FILE_SIZE=10
+      - MAX_FILE_SIZE=${MAX_FILE_SIZE:-10485760}
+      - TEMP_DIR=/app/temp
     restart: unless-stopped
     healthcheck:
-      test: ["CMD", "node", "-e", "require('http').get('http://localhost:3000/api/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"]
+      test: ["CMD", "node", "-e", "require('http').get('http://localhost:3000/', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"]
       interval: 30s
       timeout: 5s
       retries: 3
       start_period: 10s
-    mem_limit: 512m
-    cpus: 1.0
+    mem_limit: ${MEM_LIMIT:-512m}
+    cpus: ${CPU_LIMIT:-1.0}
     logging:
       driver: "json-file"
       options:
         max-size: "10m"
         max-file: "3"
+    # Optional: mount temp directory if you want persistence
+    # volumes:
+    #   - ./temp:/app/temp