Menyelesaikan object user dan init base

src/main.ts

@@ -1 +1,48 @@
-// placeholder main.ts
+import { ValidationPipe } from '@nestjs/common';
+import { NestFactory } from '@nestjs/core';
+import { ConfigService } from '@nestjs/config';
+import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
+
+import { AppModule } from './app.module';
+
+async function bootstrap() {
+  const app = await NestFactory.create(AppModule);
+
+  const config = app.get(ConfigService);
+
+  app.setGlobalPrefix('api');
+
+  app.useGlobalPipes(
+    new ValidationPipe({
+      whitelist: true,
+      transform: true,
+      forbidNonWhitelisted: true,
+    }),
+  );
+
+  app.enableCors();
+
+  const swaggerEnabled =
+    config.get<string>('SWAGGER_ENABLED') === 'true';
+
+  if (swaggerEnabled) {
+    const swaggerConfig = new DocumentBuilder()
+      .setTitle('RayLab Core API')
+      .setDescription('RayLab Core REST API')
+      .setVersion('1.0.0')
+      .addBearerAuth()
+      .build();
+
+    const document = SwaggerModule.createDocument(app, swaggerConfig);
+
+    SwaggerModule.setup('docs', app, document);
+  }
+
+  const port = config.get<number>('PORT') || 3000;
+
+  await app.listen(port);
+
+  console.log(`Server running on http://localhost:${port}`);
+}
+
+bootstrap();