Extract ActivityPub outbox walk into internal/activitypub/outbox.go with
webfinger/actor resolution, Create/Note filtering and IRI dereferencing.
Fix searchStatus returning wrong post, nil-account panic in SearchActors,
@local handle resolution, empty Author via noteToInternalPost, protocol-
relative URL handling, pagination loops, limit clamping (200) and cacheErr
masking. Add per-host token-bucket throttle (1/s, cross-host concurrency)
in throttle.go and background GTS warming via search?resolve for outbox-
fetched posts without following remotes. Align AGENTS.md.
Co-Authored-By: internal-model
Nacorid
c96447e3e0