Three crash- and migration-recovery gaps in the unified enrichment
model left rows stuck or misclassified:
- Upsert re-armed a blank, newly-linked tracker pattern without
clearing its prior enrichment payload. A crash between the worker's
claim and persist then left the row with a stale payload, so the
stale-recovery sweep (which only catches rows with a null payload)
skipped it forever. Clear enrichment on re-arm so the row reads as
not-yet-completed again, and pin the behavior with a test.
- The migration added last_enrichment_attempt_at to
common_third_parties without seeding it. Rows with prior attempts
kept a NULL clock and could never satisfy the stale-reset predicate.
Backfill from updated_at, the historical claim-time proxy.
- The migration switched the tracker-pattern enriched-state source to
the enrichment payload without backfilling rows previously marked by
enriched_at, making already-enriched rows read as unenriched.
Seed a provenance sentinel for rows that carried the old done-flag.
Signed-off-by: Émile Ré <emile@probo.com>
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