Update backend/src/modules/health/health.controller.ts via Son of Anton

backend/src/modules/health/health.controller.ts

+import { Controller, Get } from '@nestjs/common';
+import { Public } from '../../common/decorators/public.decorator';
+
+@Controller('health')
+export class HealthController {
+  @Get()
+  @Public()
+  check() {
+    return {
+      status: 'ok',
+      timestamp: new Date().toISOString(),
+      uptime: process.uptime(),
+    };
+  }
+}
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