feat: add Nginx reverse proxy service with rate limiting to docker-compose configuration

docker-compose.yml

@@ -1,6 +1,17 @@
 services:
   erika:
     build: .
-    ports:
-      - "8606:3000"
+    expose:
+      - "3000"
+    restart: unless-stopped
+
+  nginx:
+    image: nginx:alpine
+    container_name: erika-nginx
+    ports:
+      - "8606:80"
+    volumes:
+      - ./nginx.conf:/etc/nginx/nginx.conf:ro
+    depends_on:
+      - erika
     restart: unless-stopped