Update app.py

app.py

@@ -67,7 +67,7 @@ pipe.fuse_lora()
 def safe_filename(text):
     """Generate a safe filename from a string."""
     safe_text = re.sub(r'\W+', '_', text)
-    timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
+    timestamp = datetime.datetime.now().strftime("%Y%m%d")
     return f"{safe_text}_{timestamp}.png"
     
 def encode_image(image):