feat: add Swagger API documentation setup in main application bootstrap

backend/src/main.ts

@@ -1,6 +1,7 @@
 import { NestFactory } from '@nestjs/core';
 import { ValidationPipe } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
+import { SwaggerModule, DocumentBuilder } from '@nestjs/swagger';
 import { AppModule } from './app.module';
 
 async function bootstrap() {
@@ -54,10 +55,22 @@ async function bootstrap() {
   }
 
   // Préfixe global pour les routes API
-  app.setGlobalPrefix(configService.get<string>('API_PREFIX', 'api'));
+  const apiPrefix = configService.get<string>('API_PREFIX', 'api');
+  app.setGlobalPrefix(apiPrefix);
+
+  // Configuration de Swagger
+  const config = new DocumentBuilder()
+    .setTitle('Group Maker API')
+    .setDescription('API documentation for the Group Maker application')
+    .setVersion('1.0')
+    .addBearerAuth()
+    .build();
+  const document = SwaggerModule.createDocument(app, config);
+  SwaggerModule.setup('api/docs', app, document);
 
   const port = configService.get<number>('PORT', 3000);
   await app.listen(port);
   console.log(`Application is running on: http://localhost:${port}`);
+  console.log(`Swagger documentation is available at: http://localhost:${port}/api/docs`);
 }
 bootstrap();