Demonstrate main-relative companion loading

docs/roadmap/implementation.md

@@ -196,6 +196,8 @@ coverage, including existing namespace and repeated-source cases.
 
 ## Stage 6 — Exercise the combined workflow
 
+**Status:** Complete. The executable consumer example and strict-peer regression pass.
+
 Add a maintained executable example in `examples/consumers` for a single
 layered load using `SearchConfig`, a mapping companion with optional named
 files and recursive directory imports, an independently located embedded