fix: Restore missing code in delete_image and get_gallery

app.py

@@ -761,7 +761,14 @@ def delete_image():
     if os.path.exists(filepath):
         try:
             send2trash(filepath)
+            return jsonify({'success': True, 'source': resolved_source})
+        except Exception as e:
+            return jsonify({'error': str(e)}), 500
+    else:
+        return jsonify({'error': 'File not found'}), 404
 
+@app.route('/gallery')
+def get_gallery():
     # List all images in the chosen source directory, sorted by modification time (newest first)
     source_param = (request.args.get('source') or 'generated').lower()
     base_dir = UPLOADS_DIR if source_param == 'uploads' else GENERATED_DIR