Update chatbot.py

chatbot.py

@@ -363,7 +363,10 @@ Let's start by exploring your innovative idea! What's the name of your idea, or
         return form_data.get(stage, "")
 
     def update_form_field(self, stage_name: str, value: str):
-        setattr(self.idea_form, stage_name.lower().replace(" ", "_"), value)
+        field_name = stage_name.lower().replace(" ", "_")
+        if field_name == 'team_roles':
+            value = value.split(',')  # Convert string to list for team_roles
+        setattr(self.idea_form, field_name, value)
         try:
             # Create a new session for this operation
             new_session = SessionLocal()