fix: memory leak while downloading large files

backend/src/app.controller.ts

@@ -0,0 +1,19 @@
+import { Controller, Get, Res } from "@nestjs/common";
+import { Response } from "express";
+import { PrismaService } from "./prisma/prisma.service";
+
+@Controller("/")
+export class AppController {
+  constructor(private prismaService: PrismaService) {}
+
+  @Get("health")
+  async health(@Res({ passthrough: true }) res: Response) {
+    try {
+      await this.prismaService.config.findMany();
+      return "OK";
+    } catch {
+      res.statusCode = 500;
+      return "ERROR";
+    }
+  }
+}