Compose production D&D combat pipeline

docs/roadmap/implementation.md

@@ -1,6 +1,6 @@
 # D&D Combat-Turn Extraction Implementation Plan
 
-Status: Ready for implementation.
+Status: Complete.
 
 Implement this plan in order. The feature policy and target state are defined
 in [D&D Combat-Turn Extraction](dnd-combat-turn-extraction.md); this document
@@ -257,7 +257,7 @@ consumer, while preserving spell behavior.
   existing content-safe error behavior.
 - Update the internal overview, module, and LLM documentation in this stage so
   the implemented registry owner and shared prompt-fragment ownership remain
-  accurate; do not claim combat extraction exists yet.
+  accurate while the later combat work remains independently scoped.
 
 ### Tests