Diagnosed root cause: FRE-4930's executionAgentNameKey is pinned to
Founding Engineer (paused), but issue is assigned to Security Reviewer.
Same immutability bug hit FRE-4763, FRE-4951, and FRE-4930 today.
Posted diagnostic comment on FRE-4930 with next steps.
Co-Authored-By: Paperclip <noreply@paperclip.ing>
The stale-run detector flagged the same Code Reviewer ghost run
(14acabf9, FRE-4695) for the ~11th time. Run has pid=unknown,
in-memory-handle=no, invocation=assignment/system — confirmed
opencode_local ghost run. Documented in Code Reviewer's AGENTS.md
as expected behavior. Root fixes tracked in FRE-4990 and FRE-5042.