feat: bootstrap from Fabric monorepo

src/common/health.controller.ts

@@ -0,0 +1,25 @@
+import { Controller, Get, ServiceUnavailableException } from '@nestjs/common';
+import { DataSource } from 'typeorm';
+
+@Controller('healthz')
+export class HealthController {
+  constructor(private readonly dataSource: DataSource) {}
+
+  @Get()
+  async get() {
+    try {
+      await this.dataSource.query('SELECT 1');
+      return {
+        ok: true,
+        service: 'center',
+        database: 'ready',
+      };
+    } catch {
+      throw new ServiceUnavailableException({
+        ok: false,
+        service: 'center',
+        database: 'not_ready',
+      });
+    }
+  }
+}