Record shared source version policy

docs/roadmap/implementation.md

@@ -1,6 +1,6 @@
 # Implement shared source version checks
 
-Status: planned; no implementation stages are complete.
+Status: Stage 1 complete; runtime implementation has not started.
 
 Audience: a Luna coding agent implementing one numbered stage per prompt, in
 order. The [feature roadmap](source-version-checks.md) owns target behavior and
@@ -219,6 +219,15 @@ git diff --check
 Validate: local-link test and whitespace. Done: baseline and accepted decision
 recorded, with no runtime changes.
 
+Completion evidence: reviewed baseline `d9f08ff7198ad5a8fb5c49a43e7ccdad2ad0e707`
+and the clean implementation worktree at `70c95bf660794809e58182d736c67c9085238705`;
+confirmed ADR 0013 was unused. The everyday check passed with Go
+`go1.26.8 linux/amd64` using
+`GOTOOLCHAIN=local GOPROXY=off ./scripts/check.sh`. Documentation links and
+whitespace are validated for this unit. No environmental limitation affected
+these checks; validation was performed on Linux/amd64 only. No runtime changes
+were made.
+
 ## Stage 2 — Share version interpretation without changing defaults
 
 1. Separate reusable value interpretation and callback reporting from checkVersion,

docs/roadmap/source-version-checks.md

@@ -1,6 +1,7 @@
 # Shared Source Version Checks Roadmap
 
-Status: design decisions settled; implementation has not started. The
+Status: design decisions are recorded in [ADR 0013](../adr/0013-shared-source-version-checks.md);
+implementation has not started. The
 [implementation plan](implementation.md) owns execution order, concrete API and
 integration decisions, and completion evidence. This roadmap develops the
 partially accepted source-version request in