fix: Docker 환경에 맞게 API_PREFIX 수정

Author: ParkTjgus

frontend/constants/api.ts

@@ -1,4 +1,7 @@
-const API_BASE_URL = process.env.NEXT_PUBLIC_API_URL || "/api";
+const API_BASE_URL =
+  typeof window === "undefined"
+    ? process.env.INTERNAL_API_URL
+    : process.env.NEXT_PUBLIC_API_URL;
 
 export const API_PREFIX =
   process.env.NEXT_PUBLIC_API_MODE === "mock"

frontend/docker-compose.yml

@@ -1,14 +1,15 @@
-version: '3.8'
+version: "3.8"
 
 services:
   frontend:
     build:
       context: ..
       dockerfile: frontend/Dockerfile
     ports:
-      - '80:3000'
+      - "80:3000"
     environment:
       - NODE_ENV=production
+      - INTERNAL_API_URL=http://localhost:3000/api
     restart: unless-stopped
     networks:
       - app-network