refactor(nestjs): hook up auth endpoints

packages/server/src/common/interceptors/to-json.interceptor.ts

@@ -0,0 +1,24 @@
+import {
+  CallHandler,
+  ExecutionContext,
+  Injectable,
+  NestInterceptor,
+} from '@nestjs/common';
+import { Observable, map } from 'rxjs';
+import { mapValues, mapValuesDeep } from '@/utils/deepdash';
+
+@Injectable()
+export class ToJsonInterceptor implements NestInterceptor {
+  intercept(context: ExecutionContext, next: CallHandler): Observable<any> {
+    return next.handle().pipe(
+      map((data) => {
+        return mapValuesDeep(data, (value) => {
+          if (value && typeof value.toJSON === 'function') {
+            return value.toJSON();
+          }
+          return value;
+        });
+      }),
+    );
+  }
+}