chore: tighten scheduling review coverage

tests/scheduling/test_lifecycle.py

@@ -17,6 +17,7 @@ from pathlib import Path
 from typing import Any, cast
 
 import pytest
+from pydantic import ValidationError
 
 from tests.artifacts.test_run_store import artifact as _artifact
 from tests.artifacts.test_run_store import deployment as _deployment
@@ -588,7 +589,7 @@ async def test_tick_error_recorded_and_loop_continues(tmp_path: Path) -> None:
         broken_path = tmp_path / "schedules" / "broken" / "schedule.json"
         good_text = broken_path.read_text(encoding="utf-8")
         broken_path.write_text('{"id": "broken", "trigger": {"kind": "bogus"}}')
-        with pytest.raises(Exception):
+        with pytest.raises(ValidationError):
             await service.poll_once(intended + timedelta(seconds=1))
         assert service.last_tick_error is not None
         assert service.run_store.list_runs() == []
@@ -689,7 +690,10 @@ async def test_live_runtime_failure_spares_healthy_sibling(
         hang_id, sib_id = await _poll_two(service, intended)
         await _wait_for(lambda: runtime.started.is_set())
         await _wait_for(
-            lambda: service.run_store.get_run(sib_id).status.value == "failed"
+            lambda: (
+                service.run_store.get_run(sib_id).status.value == "failed"
+                and not service.run_store.is_executing(sib_id)
+            )
         )
         failed = service.run_store.get_run(sib_id)
         assert failed.status.value == "failed"
@@ -744,7 +748,10 @@ async def test_live_settlement_failure_spares_healthy_sibling(
         hang_id, sib_id = await _poll_two(service, intended)
         await _wait_for(lambda: runtime.started.is_set())
         await _wait_for(
-            lambda: service.run_store.get_run(sib_id).status.value == "failed"
+            lambda: (
+                service.run_store.get_run(sib_id).status.value == "failed"
+                and not service.run_store.is_executing(sib_id)
+            )
         )
         assert fired["done"]
         assert not service.run_store.is_executing(sib_id)