refactor(agent): remove enabled state

tests/unit_tests/agent/test_context_validation.py

@@ -74,7 +74,6 @@ class TestContextValidation:
             runner_id='plugin:test/plugin/runner',
             runner_config={'timeout': 300},
             agent_id='pipeline_1',
-            enabled=True,
         )
 
     def _make_resources(self) -> BuilderResources:

tests/unit_tests/agent/test_orchestrator_integration.py

@@ -1069,7 +1069,6 @@ class TestQueryEntrySessionQueryId:
             resource_policy=ResourcePolicy(),
             state_policy=StatePolicy(enable_state=False, state_scopes=[]),
             delivery_policy=DeliveryPolicy(enable_streaming=True, enable_reply=True),
-            enabled=True,
         )
 
         messages = [