Address review feedback on the agent-driven tracker catalog path:
- Return initiator-domain load failures instead of swallowing them,
so the worker retries rather than running the agent on partial
context.
- In the resolver, treat only ErrResourceNotFound as a catalog miss
and propagate genuine name/slug lookup errors.
- Insert the new vendor inside a savepoint and, on the slug
unique-violation race, reload and return the winning row instead of
aborting the caller's transaction.
- Stop seeding common_third_party_domains from observed initiator
domains. They are a co-occurrence signal, not verified ownership,
and writing them into the global cross-tenant catalog pollutes the
domain-based matcher. The curated seed owns that data.
- Warn the mapping agent that observed domains may belong to shared
CDNs, tag managers, or hosting infrastructure rather than the
vendor, so it does not attribute on that basis alone.
- Extract a shared tracker-identification prompt helper and move the
common-pattern identification prompt next to the enrichment agent.
Signed-off-by: Émile Ré <emile@probo.com>