Close the PromptKit adoption roadmap

docs/roadmap/implementation.md

@@ -1,7 +1,7 @@
 # Implementation Plan: PromptKit v0.12.0 Adoption
 
 **Last updated:** 2026-10-04
-**Status:** In progress; Stages 1–8 completed.
+**Status:** Complete; Stages 1–9 completed.
 **Audience:** Luna coding agent.
 
 ## Scope and Execution
@@ -506,6 +506,15 @@ file only if the final checks reveal an actual gap.
    completion documentation and report remaining work, if any. Do not select
    a release number, publish, tag, push, poll CI, or add permanent release gates.
 
+**Completion marker:** Stage 9 complete. The tested implementation revision is
+`5525fe8`; the preceding documentation migration commit is `9bcf183`, and this
+roadmap closure is documentation-only. At `9bcf183`, the application built,
+`go test ./...` passed, all six maintained example commands passed offline,
+`go mod verify` passed, the selected module graph contained PromptKit v0.12.0
+and both `/v3` catalogs at `v3.20260930.0` with no `/v2` catalogs, and
+`git diff --check` passed. The active Go/module scan found no removed PromptKit
+construction options.
+
 **End state:** Native PromptKit configuration and catalogs are adopted,
 operator overrides and captured resources work through the real runtime,
 application backend/domain ownership and resilience remain effective, and