feat: 添加Common模块

apps/backend/src/common/common.module.ts

@@ -0,0 +1,10 @@
+import { Module } from '@nestjs/common';
+import { RolesGuard } from './guard/roles.guard';
+import { UserModule } from 'src/user/user.module';
+
+@Module({
+    providers: [RolesGuard],
+    imports: [UserModule],
+    exports: [RolesGuard],
+})
+export class CommonModule { }