Plan the ConfigKit comparison implementation

docs/roadmap/configkit.md

@@ -1,8 +1,8 @@
 # Adopt ConfigKit v0.7.1 and expose native configuration comparison
 
 Status: end-state decisions selected; dependency adoption and `config diff` are
-not implemented. This roadmap brings the decisions and remaining work together;
-a subsequent staged implementation plan will define execution order.
+not implemented. This roadmap defines the selected target and remaining gap;
+the [implementation plan](implementation.md) owns stages and execution order.
 
 ## Purpose and authority
 
@@ -18,8 +18,7 @@ owns scope selection and independent capabilities; [ADR 0011](../adr/0011-captur
 owns captured declarations, typed input, and shared state, refined for comparison
 pairs by [ADR 0012](../adr/0012-typed-configuration-comparison-pairs.md). The
 [architecture policy](../policy/architecture.md) controls ownership and dependency
-direction. The current ADR alignment edits remain uncommitted for user
-review; this roadmap follows their agreed comparison direction.
+direction. The accepted ADRs govern this roadmap's comparison direction.
 
 The repository is being developed as a pre-release alpha. Choose the simplest
 coherent final API without preserving prototype shapes through compatibility
@@ -344,7 +343,8 @@ needed operator value for this delivery.
 ## Work needed from the baseline
 
 These work areas close the gap from the current implementation to the selected
-end state above. A subsequent staged plan will define their execution order.
+end state above. The [implementation plan](implementation.md) defines their
+execution order and completion evidence.
 
 - **Dependency adoption:** upgrade both integration requirements, reconcile sums
   and indirect/tool dependencies, and assess PromptKit v0.12.0 against the newly