Re-resolve members absent after batch adds by forum user ID. Update
renamed
usernames and quarantine deleted users so they cannot block healthy
group
delivery. Align the fake with Discourse's partial-batch semantics.
Deliver forum posting entitlements through managed group membership with
identity linkage, periodic reconciliation, webhook handling, and an
operator mapping surface.
Include fake and live test environments, setup documentation,
migrations,
and end-to-end coverage.
cgalo5758