add swagger docs

src/main.ts

@@ -1,9 +1,24 @@
 import 'reflect-metadata';
 import { NestFactory } from '@nestjs/core';
+import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
 import { AppModule } from './app.module';
 
 async function bootstrap() {
   const app = await NestFactory.create(AppModule);
+  const swaggerConfig = new DocumentBuilder()
+    .setTitle('Montime API')
+    .setDescription('Local services super app API')
+    .setVersion('1.0')
+    .addBearerAuth()
+    .build();
+
+  const swaggerDocument = SwaggerModule.createDocument(app, swaggerConfig);
+  SwaggerModule.setup('docs', app, swaggerDocument, {
+    swaggerOptions: {
+      persistAuthorization: true,
+    },
+  });
+
   await app.listen(process.env.PORT ?? 3000);
 }
 bootstrap();