When the common-third-party enrichment worker discovers owned domains
for a vendor, tracker patterns that were detected and left unmatched
before those domains were known had nothing to re-trigger them.
Add RequestMappingForUnmappedByInitiatorDomains, a global re-arm that
stamps mapping_requested_at on still-unmapped patterns whose detected
trackers share one of the new domains, and call it from the enrichment
worker's persist step for newly-inserted domains only. The mapping
worker then re-resolves them through its existing domain-overlap path.
Targeting is limited to patterns with no resolved vendor (no org third
party and an absent or unlinked catalog row), so a pattern already
attributed to this or any other vendor is never disturbed.
Signed-off-by: Émile Ré <emile@probo.com>