add app_name to invocation

Author: yaozheng-fang

veadk/tracing/base_tracer.py

@@ -64,11 +64,17 @@ async def on_user_message_callback(
             invoke_branch = (
                 invocation_context.branch if invocation_context.branch else agent_name
             )
+            current_session = invocation_context.session
+
+            span.set_attribute("app_name", current_session.app_name)
+            span.set_attribute("user_id", current_session.user_id)
+            span.set_attribute("session_id", current_session.id)
+
             span.set_attribute("agent_name", agent_name)
             span.set_attribute("invoke_branch", invoke_branch)
 
             logger.debug(
-                f"Add attributes to {span_name}: agent_name={agent_name}, invoke_branch={invoke_branch}"
+                f"Add attributes to {span_name}: app_name={current_session.app_name}, user_id={current_session.user_id}, session_id={current_session.id}, agent_name={agent_name}, invoke_branch={invoke_branch}"
             )
 
         return None