The salvaged commit forked an explicit /refine under a new "refine_review" origin so
the memory delete gate would not treat it as unattended. But is_background_review()
is the key for every other review guard — skill_manager_guards (curator-owned-only,
read-before-write), skill_manager_tool (archive instead of rmtree), skill_ledger
actor, write_approval staging, the [auto] tag — so a /refine fork silently escaped
all of them.
Carry attendedness separately: the fork keeps origin "background_review" and sets
_review_attended; turn_context binds it beside the origin ContextVar; the memory
gate keys on the new is_unattended_review(). Also run the gate AFTER
_validate_single_op / the operations list check, as memory_tool's own docstring
requires, so an invalid replace is rejected now rather than staged and failed at
approve time.
e333113871