API 타임아웃을 3분으로 증가

- Next.js API Route fetch 타임아웃: 60초 → 180초
- Nginx 프록시 타임아웃: 60초 → 180초
- 이미지 생성 API의 504 Gateway Timeout 해결
- AbortController를 사용한 타임아웃 제어 추가

deployment/container/nginx.conf

@@ -55,10 +55,10 @@ http {
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
             proxy_set_header X-Forwarded-Proto $scheme;
 
-            # Timeouts
-            proxy_connect_timeout 60s;
-            proxy_send_timeout 60s;
-            proxy_read_timeout 60s;
+            # Timeouts - 이미지 생성은 시간이 오래 걸리므로 3분으로 설정
+            proxy_connect_timeout 180s;
+            proxy_send_timeout 180s;
+            proxy_read_timeout 180s;
         }
 
         # Static files

src/app/api/content/images/generate/route.ts

@@ -11,13 +11,20 @@ export async function POST(request: NextRequest) {
       body,
     });
 
-    const response = await fetch(`${CONTENT_API_BASE_URL}/api/v1/content/images/generate`, {
-      method: 'POST',
-      headers: {
-        'Content-Type': 'application/json',
-      },
-      body: JSON.stringify(body),
-    });
+    // 이미지 생성은 시간이 오래 걸리므로 타임아웃을 3분으로 설정
+    const controller = new AbortController();
+    const timeoutId = setTimeout(() => controller.abort(), 180000); // 3분
+
+    try {
+      const response = await fetch(`${CONTENT_API_BASE_URL}/api/v1/content/images/generate`, {
+        method: 'POST',
+        headers: {
+          'Content-Type': 'application/json',
+        },
+        body: JSON.stringify(body),
+        signal: controller.signal,
+      });
+      clearTimeout(timeoutId);
 
     if (!response.ok) {
       const errorText = await response.text();
@@ -28,10 +35,21 @@ export async function POST(request: NextRequest) {
       );
     }
 
-    const data = await response.json();
-    console.log('✅ Image generation job created:', data);
+      const data = await response.json();
+      console.log('✅ Image generation job created:', data);
 
-    return NextResponse.json(data);
+      return NextResponse.json(data);
+    } catch (fetchError) {
+      clearTimeout(timeoutId);
+      if (fetchError instanceof Error && fetchError.name === 'AbortError') {
+        console.error('❌ Request timeout after 3 minutes');
+        return NextResponse.json(
+          { error: 'Request timeout', details: 'Image generation request timed out after 3 minutes' },
+          { status: 504 }
+        );
+      }
+      throw fetchError;
+    }
   } catch (error) {
     console.error('❌ Proxy error:', error);
     return NextResponse.json(