fix: honor live scheduling revisions at dispatch

tests/wf_server/test_scheduler_composition.py

@@ -18,6 +18,7 @@ from wf_server.scheduling import (
     scheduler_lifespan,
     server_scheduler_config,
 )
+from wf_transport_rpc_http import create_rpc_app
 
 
 def test_server_scheduler_config_disabled_by_default() -> None:
@@ -147,3 +148,25 @@ async def test_scheduler_lifespan_releases_lock_on_exit(tmp_path: Path) -> None:
         assert probe.held is True
     finally:
         probe.release()
+
+
+async def test_rpc_scheduler_lifespan_factory_starts_and_stops_service(
+    tmp_path: Path,
+) -> None:
+    """The RPC app receives a callable that lazily owns scheduler startup."""
+    server = build_local_static_workflow_server(tmp_path)
+    config = SchedulerServiceConfig(auto_tick=False)
+    app = create_rpc_app(
+        server,
+        lifespan=lambda _app: scheduler_lifespan(server, config),
+    )
+
+    async with app.router.lifespan_context(app):
+        assert server.api.schedules._schedule_store().root == tmp_path
+
+    probe = SchedulerOwnership(tmp_path, owner="probe")
+    probe.acquire()
+    try:
+        assert probe.held is True
+    finally:
+        probe.release()