docs(okf): frontmatter OKF + rich abstracts nas descriptions

Normalizacao OKF dos .md: type/title/description/timestamp/layer +
descriptions factuais (rich abstracts). Apenas .md tracked; corpos intactos.
Parte da aplicacao OKF a /Dados/Dev (28-06-2026).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

docs/PLAN-conductor-dashboard-expansion.md

@@ -1,10 +1,13 @@
 ---
 title: PLAN Conductor — Expansão DashDescomplicar
+description: >-
+  Spec: `docs/SPEC-dashboard-expansion-q2-2026.md`
 date: 2026-04-06
 type: plan
 status: active
 spec: SPEC-dashboard-expansion-q2-2026.md
 tags: [conductor, plan, dashboard, parallel]
+layer: wiki
 ---
 
 # Plano Conductor — Expansão DashDescomplicar