handle dir exist error for the remote deployed.

tools/image_generation.py

@@ -41,8 +41,12 @@ class ImageGenerationTool(Tool):
         )
 
         image_path = result[0][0]['image']
-        save_path = Path(os.getcwd()) / "generations" / \
-            f"generated_image_{uuid.uuid4().hex}.png"
+
+        output_dir = Path(os.getcwd()) / "generations"
+        output_dir.mkdir(parents=True, exist_ok=True)
+
+
+        save_path = output_dir / f"generated_image_{uuid.uuid4().hex}.png"
         shutil.copy(image_path, save_path)
 
         print(f"Image saved at: {save_path}")