change the correction model

frontend/components/generation/CorrectionModal.tsx

@@ -117,7 +117,7 @@ export const CorrectionModal: React.FC<CorrectionModalProps> = ({
       case "correcting":
         return "Generating corrections...";
       case "regenerating":
-        return "Regenerating with nano-banana-pro...";
+        return "Regenerating with image...";
       case "complete":
         return "Correction complete!";
       case "error":

services/correction.py

@@ -313,7 +313,7 @@ Respond with valid JSON only, no markdown formatting."""
             
             image_bytes, model_used, image_url = await image_service.generate(
                 prompt=focused_prompt,
-                model_key="nano-banana-pro",  # Always use nano-banana-pro for corrections
+                model_key="nano-banana",  # Always use nano-banana for corrections
                 width=width,
                 height=height,
                 image_url=original_image_url,  # Pass original image URL for image-to-image