fix(claude-code): use create_task RPC in async live tests

The async 130/140 live tests called client.tasks.create, which does not exist
on TasksResource (AttributeError) — it was previously masked by the test_utils
ModuleNotFoundError. Switch to client.agents.create_task(...).result, the same
create-task + send_event + poll pattern the langgraph async tutorials use.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: declan-scale

examples/tutorials/10_async/00_base/130_claude_code/tests/test_agent.py

@@ -213,11 +213,13 @@ def agent_id(self, client, agent_name):
     def test_send_simple_message(self, client, agent_id: str):
         """Create a task, send a message, and poll until a response appears."""
         import time
+        import uuid
 
         from agentex.types import TextContentParam
-        from agentex.types.agent_rpc_params import ParamsSendEventRequest
+        from agentex.types.agent_rpc_params import ParamsSendEventRequest, ParamsCreateTaskRequest
 
-        task = client.tasks.create(agent_id=agent_id)
+        task = client.agents.create_task(agent_id, params=ParamsCreateTaskRequest(name=uuid.uuid1().hex)).result
+        assert task is not None
         task_id = task.id
 
         client.agents.send_event(

examples/tutorials/10_async/10_temporal/140_claude_code/tests/test_agent.py

@@ -211,11 +211,13 @@ def agent_id(self, client, agent_name):
     def test_send_simple_message(self, client, agent_id: str):
         """Create a task, send a message, and poll until a response appears."""
         import time
+        import uuid
 
         from agentex.types import TextContentParam
-        from agentex.types.agent_rpc_params import ParamsSendEventRequest
+        from agentex.types.agent_rpc_params import ParamsSendEventRequest, ParamsCreateTaskRequest
 
-        task = client.tasks.create(agent_id=agent_id)
+        task = client.agents.create_task(agent_id, params=ParamsCreateTaskRequest(name=uuid.uuid1().hex)).result
+        assert task is not None
         task_id = task.id
 
         client.agents.send_event(