Migrate composed PromptKit consumer

docs/roadmap/implementation.md

@@ -1,6 +1,6 @@
 # PromptKit v0.18.0 implementation plan
 
-Status: Stages 1–4 complete; Stages 5–7 remain.
+Status: Stages 1–5 complete; Stages 6–7 remain.
 
 ## Authority and execution
 
@@ -177,6 +177,8 @@ package tests to guide corrections; full final validation is Stage 7.
 
 ## Stage 5: Migrate the composed consumer and its tests
 
+**Complete.** The composed suite passes with identified lists, the native bundle, and explicit local smoke targets; the aggregate report was inspected.
+
 1. In `examples/composed/main.go`, convert the root resources and `field-notes`
    collection resources assembled by `loadPromptEngine` to identified lists.
    Preserve qualified stored references such as `field-notes/demo` and