reconcile stale execs

tests/test_scheduler_runtime.py

@@ -182,6 +182,58 @@ def test_job_runtime_cancel_marks_execution_canceled(tmp_path: Path) -> None:
         runtime.shutdown()
 
 
+def test_job_runtime_start_reconciles_stale_running_execution(tmp_path: Path) -> None:
+    initialize_database(tmp_path / "stale-running.db")
+    source = create_source(
+        name="Stale source",
+        slug="stale-source",
+        source_type="feed",
+        notes="",
+        spider_arguments="",
+        enabled=False,
+        cron_minute="*/5",
+        cron_hour="*",
+        cron_day_of_month="*",
+        cron_day_of_week="*",
+        cron_month="*",
+        feed_url="https://example.com/stale.xml",
+    )
+    job = Job.get(Job.source == source)
+    execution = JobExecution.create(
+        job=job,
+        started_at="2026-03-30 12:30:00+00:00",
+        running_status=JobExecutionStatus.RUNNING,
+    )
+    artifacts = JobArtifacts.for_execution(
+        log_dir=tmp_path / "out" / "logs",
+        job_id=job.id,
+        execution_id=int(execution.get_id()),
+    )
+    artifacts.log_path.parent.mkdir(parents=True, exist_ok=True)
+    artifacts.log_path.write_text(
+        "worker: process lost during app restart\n",
+        encoding="utf-8",
+    )
+
+    runtime = JobRuntime(
+        log_dir=tmp_path / "out" / "logs",
+        worker_duration_seconds=0.5,
+        worker_stats_interval_seconds=0.05,
+        worker_failure_probability=0.0,
+    )
+    try:
+        runtime.start()
+        reconciled_execution = JobExecution.get_by_id(execution.get_id())
+
+        assert reconciled_execution.running_status == JobExecutionStatus.FAILED
+        assert reconciled_execution.ended_at is not None
+        assert "marked failed after app restart" in artifacts.log_path.read_text(
+            encoding="utf-8"
+        )
+    finally:
+        runtime.shutdown()
+
+
 def test_render_runs_uses_database_backed_jobs_and_executions(
     monkeypatch, tmp_path: Path
 ) -> None: