Harvest sweep, review re-check fix.
The prior fix corrected only the stdout record line: run_signal_r
persists the manifest to runs/traces/<name>/index.json (bound.finish)
BEFORE the post-hoc overwrite ran, so an overridden run's trace store
still carried the reopened hash — diverging from stdout in exactly the
case the revised C24/C18 clause describes. run_signal_r now takes
topo: Option<&str> (None = inline computation as before; Some = the
caller's reference-semantics hash, the run_blueprint_member precedent)
so record line and trace index read the one hash built before any
persistence; exec's override branch passes the base document's id and
the post-run mutation is gone. RED-first: the new trace-store pin
failed against the divergent state.
refs #343
claude
567f98b4e5