fusion/.changeset/fn-4887-foreign-only-contamination-recovery.md

@runfusion/fusion

@runfusion/fusion
patch

Auto-recover in-review and verification-fix tasks whose branch carries only foreign-attributed commits and zero own work (the FN-4860/FN-4875 signature). The engine now classifies foreign-only contamination, re-anchors the branch via reanchorBranchToBase, or non-destructively discards the orphan branch/worktree, instead of requiring manual git worktree remove/git branch -D/sqlite metadata recovery.