Migrate profile fixtures to keyed documents

docs/roadmap/implementation.md

@@ -1,7 +1,7 @@
 # Implementation Plan: PromptKit v0.12.0 Adoption
 
 **Last updated:** 2026-10-03
-**Status:** In progress; Stage 1 completed.
+**Status:** In progress; Stages 1–2 completed.
 **Audience:** Luna coding agent.
 
 ## Scope and Execution
@@ -148,6 +148,12 @@ selections, and changed fixture text; run `git diff --check` and format touched
 Go test files. These formats become consumable in Stage 3. Commit this unit.
 Current documentation links and recipes are updated together in Stage 8.
 
+**Completion marker:** Stage 2 complete. Six maintained profile documents are
+keyed and split into separately selected local/service roots; the listed Go
+fixtures use keyed definitions. Touched Go files were formatted and
+`git diff --check` passed. Runtime tests are deferred until Stage 3 replaces
+the current consumer, as the plan allows intermediate commits not to run.
+
 ## Stage 3 — Adopt the Released Source API and Selected-Role Checks
 
 **Primary files:** `go.mod`, `go.sum`,