v7.0.0 - Cross-Instance Collaborative Editing
Extends the read-only discovery layer (v4 P15) into write-capable cross-instance collaboration. Solves three design problems: cross-instance identity (ActivityPub actor as canonical identity), a signed write-path trust chain, and conflict resolution (last-write-wins + optimistic locking on updated_at).
Done when: an invited remote editor on another instance can create/update entries in a host project over a signed ActivityPub channel, with conflicts surfaced to a review queue. SMTP (v6) is useful but not required.
No due date
100% Completed
