8.1/8.2: listSocialFeed is now a UNION ALL of local and remote
branches, sorted on COALESCE(remote_published_at, created_at):
- local rows: visibility='public' from accepted local follows — and
the previously missing accepted_at filter is added (the spec's
'Pending follows contribute nothing' scenario)
- remote rows: gated structurally by joining the viewer's OWN accepted
follow against the originating actor — which is exactly the
followers-only audience rule (a row reaches only viewers whose
follow brought it in); attribution from the remote_actors cache;
cards link outward to the canonical origin page (no local detail
page for remote rows)
9.1: annotated — local Pending button shipped with locked accounts;
remote Pending lives on /follows/outgoing.
9.2: already enforced + tested since §3 (actor/webfinger 404).
9.3 hardening: deliver-activity now re-checks the OWNER's profile
visibility at send time, closing the enqueue→delivery flip window
(enqueue-side and inbound-side gates already existed).
Integration tests: the §8 audience-leak guard (A sees followers-only,
B does not), public remote attribution + outward link, pending
contributes nothing, mixed local/remote COALESCE ordering.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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