chore: tighten scheduling review coverage

tests/scheduling/test_schedule_store.py

@@ -141,7 +141,6 @@ def test_candidate_is_at_most_one(tmp_path: Path) -> None:
     store.save_candidate(first, schedule_id="a")
     store.save_candidate(second, schedule_id="a")
     assert store.get_candidate("a") is not None
-    assert store.get_candidate("a") is not None
     assert store.get_candidate("a").intended_at == datetime(  # type: ignore[union-attr]
         2026, 9, 8, 13, 0, tzinfo=UTC
     )
@@ -202,30 +201,6 @@ def test_inspection_payload_carries_contract_fields(tmp_path: Path) -> None:
     assert row["reason"] == "active=['run-1']"
 
 
-def test_deployment_revision_increments_on_save(tmp_path: Path) -> None:
-    from wf_artifacts import FileWorkflowArtifactStore, WorkflowDeployment
-
-    artifacts = FileWorkflowArtifactStore(tmp_path)
-    artifacts.save_deployment(
-        WorkflowDeployment(
-            id="dep-1",
-            artifact_id="wf-1",
-            artifact_version=1,
-            bindings=[],
-        )
-    )
-    assert artifacts.get_deployment("dep-1").revision == 1
-    artifacts.save_deployment(
-        WorkflowDeployment(
-            id="dep-1",
-            artifact_id="wf-1",
-            artifact_version=2,
-            bindings=[],
-        )
-    )
-    assert artifacts.get_deployment("dep-1").revision == 2
-
-
 def _tied_entry(
     kind: str,
     checkpoint_id: str | None,
@@ -248,13 +223,14 @@ def _traverse(store: FileScheduleStore, limit: int) -> list[dict]:
     """Walk every page to the end, returning all rows in visit order."""
     rows: list[dict] = []
     cursor: str | None = None
-    while True:
+    for _ in range(1000):
         page = store.list_occurrences("a", cursor=cursor, limit=limit)
         rows.extend(page["occurrences"])  # type: ignore[arg-type]
         cursor = page["next_cursor"]  # type: ignore[assignment]
         if cursor is None:
             assert page["total"] == len(rows)
             return rows
+    raise AssertionError(f"pagination did not terminate; visited {len(rows)} rows")
 
 
 def test_history_pagination_visits_every_tied_entry_once(tmp_path: Path) -> None: