Sync LMS backend source

src/app.service.ts

@@ -0,0 +1,33 @@
+import { Injectable } from '@nestjs/common';
+
+import { PrismaService } from './prisma/prisma.service';
+
+@Injectable()
+export class AppService {
+  constructor(private readonly prisma: PrismaService) {}
+
+  getRoot() {
+    return {
+      service: 'lms-be',
+      status: 'ok',
+    };
+  }
+
+  getHealth() {
+    return {
+      status: 'ok',
+      uptime: process.uptime(),
+      timestamp: new Date().toISOString(),
+    };
+  }
+
+  async getDatabaseHealth() {
+    await this.prisma.$queryRaw`SELECT 1`;
+
+    return {
+      status: 'ok',
+      provider: 'postgresql',
+      timestamp: new Date().toISOString(),
+    };
+  }
+}