Draft the ConfigKit consolidation roadmap toward 1.0

docs/roadmap/complexity.md

@@ -4,6 +4,11 @@ Status: proposed target state. This roadmap defines a behavior-preserving
 refactor; a later implementation plan will define stages and exact private
 signatures and file names.
 
+The combined proposal for the next scope is
+[ConfigKit Consolidation Toward 1.0](consolidation.md). It incorporates this
+internal target, the later audit, and a review of consumer-facing simplification.
+Use that proposal for scope review; this document retains the earlier analysis.
+
 ## Purpose
 
 Make ConfigKit's import, inheritance, and projection implementation easier to