Updated app to use fire base

app.py

@@ -44,17 +44,16 @@ def load_curated_qa_pairs():
     try:
         with open(CURATED_QA_FILE, "r", encoding="utf-8") as f:
             return json.load(f)
-    except:
+    except Exception as e:
+        st.error(f"Error loading curated Q/A pairs: {e}")
         return []
 
 # ========================================
 # Chatbot Interface & Conversation Handling
 # ========================================
-
 def display_conversation():
     """Displays conversation history in a structured chat format."""
-    for entry in st.session_state.conversation_history:
-        role, message = entry
+    for role, message in st.session_state.conversation_history:
         with st.chat_message(role):
             st.write(message)
 
@@ -102,4 +101,4 @@ if user_query:
         answer = response.get("answer", "I couldn't find an answer to that.")
     
     add_to_conversation("assistant", answer)
-    st.rerun()
+    st.rerun()