Default model reasoning effort to medium

tests/test_server_api.py

@@ -26,6 +26,7 @@ class FakeJobManager:
         command_timeout: int = 45,
         type_interval: float = 0.02,
         click_pause: float = 0.10,
+        reasoning_effort: str = "medium",
         disabled_tools: list[str] | None = None,
         safety_override: bool = False,
         no_failsafe: bool = False,
@@ -46,6 +47,7 @@ class FakeJobManager:
             "command_timeout": command_timeout,
             "type_interval": type_interval,
             "click_pause": click_pause,
+            "reasoning_effort": reasoning_effort,
             "no_failsafe": no_failsafe,
         }
         self._jobs[job_id] = {
@@ -189,6 +191,7 @@ def test_create_job_returns_only_job_id_and_defaults_model(tmp_path: Path, monke
     manager = app.state.manager
     assert manager.last_submit_payload["model"] == "gpt-5.4-mini"
     assert manager.last_submit_payload["disabled_tools"] == ["click"]
+    assert manager.last_submit_payload["reasoning_effort"] == "medium"
 
     status_res = client.get(f"/api/jobs/{job_id}/status", headers=headers)
     assert status_res.status_code == 200