docs: accept docs format ADR

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/adr/20261023T214738672Z-adopt-a-checked-format-for-adrs-and-implementation-plans.md

@@ -1,8 +1,8 @@
 ---
 title: Adopt a checked format for ADRs and implementation plans
 date: 2026-10-23
-status: proposed
+status: accepted
-implementation: in-progress
+implementation: implemented
 summary: Use one documented ADR and plan format, enforced by a shared Go CLI (docs check).
 tags:
   - documentation
@@ -12,7 +12,8 @@ supersedes: []
 superseded_by: []
 related: []
 tracking: []
-implemented_by: []
+implemented_by:
+  - https://gitea.auvem.com/corestack/go/pulls/1
 ---
 
 # Adopt a checked format for ADRs and implementation plans