fix: yarn tsc 버그 수정

- 테스트 코드 tsc 검사 제외
- 타입 지정 로직 추가

backend/mainServer/src/host/host.controller.ts

@@ -24,9 +24,9 @@ export class HostController {
       const hostData = await this.hostService.generateStreamKey(uuid);
       res.status(HttpStatus.OK).json({ 'host-data': hostData });
     } catch (error) {
-      if (error.status === 400) {
+      if ((error as { status: number }).status === 400) {
         res.status(HttpStatus.BAD_REQUEST).json({
-          error: error.response
+          error: (error as { response: Response }).response
         });
       }
       else {

backend/tsconfig.json

@@ -8,6 +8,10 @@
 
     "strict": true,
     "skipLibCheck": true,
-    "baseUrl": "."
-  }
+    "baseUrl": ".",
+
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true
+  },
+  "exclude": ["**/*spec.ts"]
 }