add extra cleaning part to clean_json_string function

app.py

@@ -71,6 +71,9 @@ def clean_json_string(json_str):
     json_str = re.sub(r"(?<!\\)'([^']*)'", r'"\1"', json_str)
     # Add quotes around PASS or FAIL if they're not already quoted
     json_str = re.sub(r'"SCORE":\s*(PASS|FAIL)', r'"SCORE": "\1"', json_str)
+
+    # Escape double quotes
+    json_str = re.sub(r'(?<=: ")([^"]*)"([^"]*)"([^"]*)"', lambda m: m.group(1) + m.group(2).replace('"', '\\"') + m.group(3), json_str)
     
     return json_str