feat: log startup success and swagger address

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/main.ts

@@ -13,13 +13,19 @@ async function bootstrap(): Promise<void> {
   app.useLogger(app.get(Logger));
 
   const swaggerConfig = new DocumentBuilder()
-    .setTitle('sysmgr API')
+    .setTitle('系统管理 API')
-    .setDescription('通用系统管理脚手架 API 文档')
+    .setDescription('投云科技系统管理 API 文档')
     .setVersion('1.0')
     .addBearerAuth()
     .build();
-  SwaggerModule.setup('docs', app, SwaggerModule.createDocument(app, swaggerConfig));
+  SwaggerModule.setup(
+    'docs',
+    app,
+    SwaggerModule.createDocument(app, swaggerConfig),
+  );
 
-  await app.listen(process.env.PORT ?? 3000);
+  const port = Number(process.env.PORT ?? 3000);
+  await app.listen(port);
+  app.get(Logger).log(`服务启动成功，端口 ${port}，Swagger 文档: http://localhost:${port}/docs`);
 }
 await bootstrap();