Update app.py

app.py

@@ -329,6 +329,7 @@ def main():
             
             # Clear history
             if clear_history:
+                time.sleep(20)
                 st.session_state.chat_history = []
                 save_qa_history([])  # Clear saved history
                 st.rerun()
@@ -372,12 +373,6 @@ def main():
             "🟢" if st.session_state.pipeline else "🔴",
             "พร้อมใช้งาน" if st.session_state.pipeline else "ไม่พร้อมใช้งาน"
         ), unsafe_allow_html=True)
-
-        # Handle clear history action
-        if clear_history:
-            st.session_state.chat_history = []
-            clear_qa_history()
-            st.rerun()
     
     time.sleep(20)
     save_qa_history(all_history)