Update app.py

app.py

@@ -178,7 +178,8 @@ class ResearchAgent:
                 self.groq_client = Groq(api_key=groq_key)
                 print("✅ Groq API connected")
             except Exception as e:
-                print(f"❌ Groq error: {e}")
+                print(f"⚠️ Groq not available: {e}")
+                self.groq_client = None
 
     def upload_docs(self, files):
         if not files:
@@ -264,7 +265,7 @@ def main():
         
         with gr.Row():
             with gr.Column():
-                chatbot = gr.Chatbot(height=400, type="messages")
+                chatbot = gr.Chatbot(height=400)
                 msg = gr.Textbox(label="Question", placeholder="Ask something...", lines=1)
                 btn_send = gr.Button("Send", variant="primary")
                 btn_clear = gr.Button("Clear")
@@ -272,7 +273,7 @@ def main():
             with gr.Column():
                 gr.Markdown("### Upload Documents")
                 file_input = gr.Files(label="PDF Files", file_types=[".pdf"])
-                upload_status = gr.Textbox(label="Status", interactive=False)
+                upload_status = gr.Textbox(label="Status", interactive=False, lines=4)
         
         # Events
         def respond(message, chat_history):