update tests for proper HTTP status codes

tests/test_agents.py

@@ -97,5 +97,4 @@ class TestAgentRuns:
     @pytest.mark.asyncio
     async def test_unknown_run(self, agent_client):
         res = await agent_client.get(E.run("nonexistent"))
-        H.assert_status(res, 200)
-        assert "error" in res.json()
+        H.assert_status(res, 404)

tests/test_scenario_data.py

@@ -49,8 +49,7 @@ class TestFlights:
     @pytest.mark.asyncio
     async def test_patch_unknown_flight(self, client):
         res = await client.patch(E.flight("FAKE"), json={"delay_minutes": 10})
-        H.assert_status(res, 200)
-        assert "error" in res.json()
+        H.assert_status(res, 404)
 
 
 class TestCrew:

tests/test_scenarios.py

@@ -49,5 +49,4 @@ class TestActiveScenario:
     @pytest.mark.asyncio
     async def test_switch_invalid(self, client):
         res = await client.put(E.SCENARIO_ACTIVE, json={"scenario_id": "nonexistent"})
-        H.assert_status(res, 200)
-        assert "error" in res.json()
+        H.assert_status(res, 400)