add content service and core config

src/modules/content/content.module.ts

@@ -1,8 +1,12 @@
 import { Module } from '@nestjs/common';
 
+import { PostService } from '@/modules/content/services/post.service';
+
 import { PostController } from './controllers/post.controller';
 
 @Module({
     controllers: [PostController],
+    providers: [PostService],
+    exports: [PostService],
 })
 export class ContentModule {}