Update app.module.ts to exclude AuthMiddleware for document-processor routes

- Modified the middleware configuration in backend/src/app.module.ts to exclude the AuthMiddleware for routes under 'document-processor', allowing unauthenticated access to document processing endpoints.

Author: adamrefaey

backend/src/app.module.ts

@@ -26,6 +26,9 @@ import { DocumentProcessorModule } from './document-processor/document-processor
 })
 export class AppModule implements NestModule {
   configure(consumer: MiddlewareConsumer) {
-    consumer.apply(AuthMiddleware).forRoutes('*'); // Apply to all routes
+    consumer
+      .apply(AuthMiddleware)
+      .exclude('document-processor/(.*)')
+      .forRoutes('*');
   }
 }