fix(cron): report ownerless interrupted fires so their notices still send

mark_running_jobs_interrupted skipped legacy fires without a registered
durable owner entirely — correct for the persisted last_status write
(no owner fence to protect a replacement run), but the gateway shutdown
path also uses the returned ID list to deliver interrupted-cron notices
while adapters are still connected (#82232). Keep the persistence skip,
but include the job in the returned list so the user is still told.

cron/scheduler.py

@@ -957,6 +957,12 @@ def mark_running_jobs_interrupted(
                 "leaving persisted state untouched",
                 job_id,
             )
+            # Still report the interruption to the caller: the gateway
+            # shutdown path uses the returned IDs to send the
+            # interrupted-cron notice while adapters are still connected
+            # (#82232). The in-memory interrupt flag WAS recorded above —
+            # only the persisted last_status write is skipped here.
+            marked.append(job_id)
             continue
         try:
             with use_cron_store(profile_home):

tests/gateway/test_cron_interrupt_notification.py

@@ -220,10 +220,10 @@ class TestDeliveryErrorIsRecordedWhenTheNoticeCannotBeSent:
 
         import cron.scheduler as sched
 
-        src = inspect.getsource(sched.run_one_job)
+        src = inspect.getsource(sched._run_one_job_body)
         assert 'update_job(job["id"], {"last_delivery_error": delivery_error})' in src, (
             "interrupted runs must still persist the delivery failure"
         )
         # The recovery branch hangs off the interrupted-flag short-circuit,
         # not off a second mark_job_run call.
-        assert "elif delivery_error:" in src
+        assert "if interrupted:" in src and "if delivery_error:" in src