- Enrich published matches with a TNS cross-link (name, object-page link,
classification, redshift, separation, objid) plus a tns_checked /
tns_snapshot_epoch indicator, from a periodically refreshed local snapshot
of TNS public objects. Best-effort: a missing or stale snapshot never blocks
a crossmatch batch.
- New tables via migration 0010 (TnsObject, TnsAssociation, TnsSnapshotMeta).
No Dask lockstep required (TNS association is in-process HEALPix). DEPLOY NOTE:
the refresh task stays disabled until TNS_BOT_* credentials are provisioned as
a per-cluster secret.