fix folder permissions

app.py

@@ -622,16 +622,20 @@ def main():
                 # Save feedback to file - use absolute path in /app to ensure writability
                 feedback_dir = Path("/app/feedback")
                 try:
-                    feedback_dir.mkdir(mode=0o755, exist_ok=True)
+                    # Ensure directory exists with write permissions (777 for compatibility)
+                    feedback_dir.mkdir(parents=True, mode=0o777, exist_ok=True)
                 except (PermissionError, OSError) as e:
                     logger.warning(f"Could not create feedback directory at {feedback_dir}: {e}")
                     # Fallback to relative path
                     feedback_dir = Path("feedback")
-                    feedback_dir.mkdir(mode=0o755, exist_ok=True)
+                    feedback_dir.mkdir(parents=True, mode=0o777, exist_ok=True)
                 
                 feedback_file = feedback_dir / f"feedback_{st.session_state.conversation_id}_{int(time.time())}.json"
                 
                 try:
+                    # Ensure parent directory exists before writing
+                    feedback_file.parent.mkdir(parents=True, mode=0o777, exist_ok=True)
+                    
                     # Save to local file
                     print(f"💾 FEEDBACK SAVE: Saving to local file: {feedback_file}")
                     with open(feedback_file, 'w') as f: