Implement ops inventory probe evidence slice

tests/test_schedule_lifecycle.py

@@ -125,9 +125,15 @@ async def test_delete_schedule_removes_schedule(env: WorkflowEnvironment) -> Non
     await upsert_schedule(env.client, defn)
     await delete_schedule(env.client, defn.id)
 
-    schedules = await list_schedules(env.client)
-    ids = [s["schedule_id"] for s in schedules]
-    assert schedule_id(defn.id) not in ids, "Schedule should be gone after delete"
+    sid = schedule_id(defn.id)
+    ids: list[str] = []
+    for _ in range(10):
+        schedules = await list_schedules(env.client)
+        ids = [s["schedule_id"] for s in schedules]
+        if sid not in ids:
+            break
+        await asyncio.sleep(0.3)
+    assert sid not in ids, "Schedule should be gone after delete"
 
 
 # ── T25e: delete_schedule is idempotent (no-op for non-existent schedule) ────