Point FLEX-WP-0019 review at the implementation commit it assessed

C-21 flagged the ready workplan as possibly stale: reviewed against 5753b47,
HEAD had moved. Checked rather than assumed — nothing since 5753b47 touches Go
or schemas. Every commit between is documentation or work-record only, and the
last implementation change is d402408 (2026-08-23).

reviewed_against_commit now names the implementation state reviewed rather than
the HEAD at review time, so it moves when the code moves, which is when the
review needs redoing. C-21 compares against HEAD and cannot distinguish a doc
commit from a code one, so it will keep warning softly on this plan; the record
is accurate and that is the trade taken deliberately.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012sgN4GH5ZYT8pJVkCR6dcP

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 4014348@bnt-lap001
Assistant-Session: a993abda-65a0-4ea8-8ccd-0fcd78c92ac0

workplans/FLEX-WP-0019-layer-model-conformance.md

@@ -12,7 +12,13 @@ planning_order: 119
 created: "2026-08-29"
 updated: "2026-08-29"
 reviewed_at: "2026-08-29"
-reviewed_against_commit: "5753b47"
+reviewed_against_commit: "d402408"
+reviewed_note: >-
+  d402408 is the last commit to touch implementation (Go sources and schemas);
+  the assessment was performed with the working tree at 5753b47, and every
+  commit between the two is documentation or work-record only. This field names
+  the implementation state reviewed rather than the HEAD at review time, so it
+  moves when the code moves — which is when the review actually needs redoing.
 origin: history/2026-08-29-layer-model-v0.7-alignment-review.md
 quality_dor: DoR-Ok
 quality_dor_at: "2026-08-29"