fix(preprocess): reconcile durable DWH generations

harness/tht/jobs/runner.py

@@ -249,6 +249,7 @@ def _resume_run(
 def run_job(
     spec: JobSpec, stages: Sequence[Stage], *,
     after_stage_return: Callable[[JobContext, str], Any] | None = None,
+    reconcile_effects: Callable[[JobRun, Path], set[str]] | None = None,
 ) -> JobReport:
     """Run stages once, returning a terminal report instead of leaking stage exceptions."""
     with WorkspaceJobLock(spec.workspace_root, spec.workspace_id, spec.job_type):
@@ -268,6 +269,8 @@ def run_job(
             source = _load_checkpoint(source_path)
             _validate_resume_source(spec, stages, source)
             effect_completed = _validate_artifacts(source_path.parent, spec, source)
+            if reconcile_effects is not None:
+                effect_completed |= reconcile_effects(source, source_path.parent)
 
         run_id = uuid.uuid4().hex
         run_dir = jobs_root / run_id