Complete ConfigKit adoption validation

docs/roadmap/implementation.md

@@ -1,6 +1,6 @@
 # ConfigKit v1.1.0 adoption implementation plan
 
-Status: Stages 1–5 complete; Stage 6 is not started.
+Status: Stages 1–6 complete.
 
 This plan is for a Luna coding agent implementing the selected
 [ConfigKit adoption target](configkit-v1.1.0.md). Follow Stage 1 through Stage 6
@@ -268,6 +268,16 @@ with authentic source/license references and no unrelated attribution rewrite.
 
 ## Stage 6: Validate the final state and finish the sprint
 
+**Completed.** With Go 1.27.0 and workspace discovery off, the complete core,
+ckconfig, and ckprompt suites passed offline with read-only metadata. Ckconfig's
+suite was repeated after adding an explicit native main-layer explanation
+assertion. The simple example's text and YAML source reports and fixture diff
+ran successfully; the focused source fixture covers nonempty import evidence.
+Core and ckprompt were tested against their own declared dependency graphs,
+not against local migrated ckconfig. Full local workspace composition remains
+pending the later ckprompt migration. The v0.3.0 note is a candidate; no source
+release or hosted delivery was performed.
+
 1. Format changed Go files; inspect final diffs and module metadata. Confirm
    ckconfig-owned Go imports use the vanity ConfigKit identity, the old
    requirement is gone, its Go minimum is 1.27.0, core stays at v0.3.0, and no