Update app.py

app.py

@@ -7,6 +7,11 @@ def chat_interface_fn(message, history, session_id):
     'session_id' is used to store conversation across turns.
     Deduplicates consecutive repeated Q&A pairs to avoid repetition.
     """
+    # Ensure history is a list of dictionaries
+    if history and isinstance(history[0], tuple):
+        print("DEBUG: Converting history from tuple format to dictionary format.")
+        history = [{"role": "user", "content": h[0]}, {"role": "assistant", "content": h[1]} for h in history]
+    
     # 1) Get answer from the session-based memory pipeline
     answer = run_with_session_memory(message, session_id)
 
@@ -18,7 +23,8 @@ def chat_interface_fn(message, history, session_id):
     # 3) Convert history to message dictionaries for display
     message_dicts = []
     for msg in history:
-        message_dicts.append(msg)  # Directly append the dictionary
+        # Ensure the message format is correct: it should always be a dictionary
+        message_dicts.append(msg)
 
     # Return the message dicts and updated history
     return message_dicts, history