change feedback dir creation

app.py

@@ -619,9 +619,15 @@ def main():
                 # Display the data being submitted
                 st.json(feedback_data)
                 
-                # Save feedback to file
-                feedback_dir = Path("feedback")
-                feedback_dir.mkdir(exist_ok=True)
+                # 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)
+                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_file = feedback_dir / f"feedback_{st.session_state.conversation_id}_{int(time.time())}.json"