auth checkpoint

auth dependecies not instaled in dev container

backend/src/main.ts

@@ -1,5 +1,7 @@
-import { NestFactory } from '@nestjs/core';
+import { NestFactory, Reflector } from '@nestjs/core';
+import { ValidationPipe } from '@nestjs/common';
 import { AppModule } from './app.module';
+import { JwtAuthPublicGuard } from './modules/auth/jwt-auth-public.guard';
 
 async function bootstrap() {
   const app = await NestFactory.create(AppModule);
@@ -16,6 +18,19 @@ async function bootstrap() {
 
   app.setGlobalPrefix('api/v1');
 
+  // Apply global validation pipe
+  app.useGlobalPipes(
+    new ValidationPipe({
+      whitelist: true,
+      transform: true,
+      forbidNonWhitelisted: true,
+    }),
+  );
+
+  // Apply global authentication guard
+  const reflector = app.get(Reflector);
+  app.useGlobalGuards(new JwtAuthPublicGuard(reflector));
+
   const port = process.env.PORT ?? 3000;
   const host = '0.0.0.0'; // Bind to all interfaces for Docker
   await app.listen(port, host);