Close FRE-5081: mark ghost run 14acabf9 evaluation as false positive

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.

agents/cto/life/areas/companies/FrenoCorp/items.yaml

@@ -0,0 +1,11 @@
+- id: stale-run-detector-ghost-pattern
+  type: observation
+  created: 2026-05-10T07:40:00Z
+  summary: Stale-run detector generates false positives for ghost runs (pid unknown, no in-memory handle, run already cleaned up)
+  details: >
+    30+ "Review silent active run" issues have been created and closed as done.
+    These are ghost runs that were cleaned up but still detected as stale.
+    FRE-4966 attempted to fix by skipping runs with pid=unknown and no in-memory-handle,
+    but the detector still fires. FRE-4990 (critical, todo) tracks the server-side dedup fix.
+  status: active
+  superseded_by: null