Normalize transport-specific discovery facts at their shared owner; preserve upstream duplicate-ID rejection and correct discovery-time attachment uncertainty in all consumers.
53 focused regressions, serial static checks and real Chrome CLI/MCP fault injection/inspection pass. Greptile final head 5/5. Exact-main controls reproduce all 17 source and 21 shard-8 failures; seven shards cancelled and remain unverified. Requester authorized readiness and unrelated-main CI bypass. Human review is not attested.
Co-authored-by: gensokyo-dev <[email protected]>