fix: align server port with HF Space requirements

Dockerfile

@@ -32,7 +32,7 @@ COPY --from=build /app/prisma ./prisma
 
 # 환경 변수 및 포트 설정
 ENV NODE_ENV=production
-EXPOSE 80
+EXPOSE 7860
 
 # 앱 실행
 CMD ["node", "dist/index.js"]

src/index.ts

@@ -7,7 +7,7 @@ if (!process.env.DATABASE_URL) {
   const user = process.env.POSTGRES_USER;
   const pass = process.env.POSTGRES_PASSWORD;
   const host = process.env.POSTGRES_NAME;
-  const db   = process.env.POSTGRES_DB;
+  const db = process.env.POSTGRES_DB;
   process.env.DATABASE_URL = `postgresql://${user}:${pass}@${host}:5432/${db}?sslmode=require`;
 }
 
@@ -20,5 +20,5 @@ try {
 }
 
 // 서버 시작
-const port = process.env.PORT || 8080;
+const port = process.env.PORT || 7860;
 app.listen(port, () => console.log(`Backend running on port ${port}`));