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Bohan-J 9f2d52d630 fix(comment): make autopilot @mention authority consistent across defer/edit (MUL-4857)
Second review round (Elon) surfaced two must-fixes on top of the lineage binding.

1. Busy-target completion reconcile lost the authority. A delegation to a target
   that is already running is deferred to that target's completion reconcile
   (reconcileCommentsOnCompletion). That path recomputed triggers with only the
   (empty) originator, so an unattributed autopilot delegation's follow-up was
   gate-denied again and silently dropped. It now restores the delegation
   authority from comment.source_task_id, so the follow-up fires once the target
   frees up — still unattributed.

2. Edit could borrow the old authoring run's authority, and preview != save. The
   edit preview keyed authority on the current request task while save keyed it on
   the comment's original source_task_id, so an agent editing its old autopilot
   comment from a task on an UNRELATED issue would fail-closed in preview but reuse
   the old autopilot creator's authority on save (cross-issue confused-deputy, and
   a preview/side-effect divergence). Fix: treat source_task_id as the persisted
   per-action authority lineage and re-stamp it on edit to the CURRENT editing
   task, issue-scoped exactly like CreateComment. A cross-issue edit re-stamps it
   to NULL, so preview, save, AND the deferred reconcile all fail closed
   identically. UpdateComment query gains a source_task_id param (sqlc regen).

Also locks the review-accepted behavior that effectiveInvoker() carries the
autopilot-creator authority into the plain assigned-squad-leader wake (a worker's
result comment on the autopilot issue can still wake the private leader).

Tests: reconcile-restores-authority (owns -> one unattributed follow-up; no rights
-> none); edit re-stamp (same-issue keeps authority and triggers; cross-issue
clears source_task_id and fails closed); worker-result wakes private squad leader.
Verified both fixes are load-bearing (each negative control reproduces the exact
regression Elon described), full internal/handler + internal/service packages pass,
gofmt/vet clean. Skill docs (multica-mentioning) updated.

Co-authored-by: multica-agent <github@multica.ai>
2026-07-16 14:28:41 +08:00
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