Set fixed caption text for /colorize responses

app/main.py

@@ -710,13 +710,10 @@ async def colorize(
         base_url = "https://logicgoinfotechspaces-text-guided-image-colorization.hf.space"
 
         result_id_clean = result_id.replace(".png", "")
-        
-        # Generate caption based on model used
-        if model_type == "cco":
-            caption = f"Colorized using CCO {cco_model} model with vibrant natural colors, high quality"
-        else:
-            caption = "Colorized using GAN model with vibrant natural colors, high quality"
-        
+
+        # Use a consistent caption text for all models
+        caption = "colorize this image with vibrant natural colors, high quality"
+
         response_data = {
             "success": True,
             "result_id": result_id_clean,