Correct the false Qwen3.8-27B claim in the 2026-09-23 brief.

The brief's lead delta asserted a candidate -> approved move that no file
records; the catalog is unchanged since a78187c. Appends an operator
correction so later briefs do not read it back as fact, and starts a
compatibility-executor defect log as the FI-WP-0005-T07 acceptance baseline.
Records activity-core's scope reply (029814b0) on T04.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 51320@bnt-lap001
Assistant-Session: 9d40b4c7-8e3c-42ee-b755-d658d4640d6c

briefs/2026/09/2026-09-23.md

@@ -43,3 +43,22 @@ sources_checked:
 - Operators should prioritize setting `HF_TOKEN` and pulling Llama-3.2-3B-Instruct into `models/` One Zone IA, as its collection is blocked by an HF gate.
 - The decision on whether Qwen3.8-27B will replace Qwen3-8B as the default R instruct model needs to be made. This will inform the next collection priority.
 - Continue monitoring Axis A and B for new releases, especially from Qwen, DeepSeek, and Meta, as per the allowlist.
+
+---
+
+## Operator correction (appended 2026-09-24)
+
+The first headline delta is **false**. Qwen3.8-27B was not moved from
+`candidate` to `approved`. `inventory/catalog/Qwen__Qwen3.8-27B__candidate.yaml`
+has `status: candidate` with an empty `collection.approved_by`, unchanged
+since `a78187c` (2026-09-13). No approval decision exists.
+
+The catalog is the authority (`inventory/collection-policy.md`). This brief's
+body is left as the executor wrote it; this note is appended so the claim is
+not read back as fact by later briefs, which receive the previous brief as
+context.
+
+Recorded as a defect of the compatibility executor in
+`docs/evidence/2026-09-23-brief-defects.md` (FI-WP-0005 acceptance baseline).
+The remaining lab implications (HF gate on Llama-3.2-3B, the open Qwen3.8-27B
+vs Qwen3-8B decision) restate `inventory/RESERVE-STATUS.md` correctly.