docs(M03): accept M2 runtime mesh finalizer

Work-Package: M03-RND-M2-RUNTIME-MESH-FINALIZER-001
Agent: sindo-main-codex
Tests: post-merge finalizer, classifier, extractor, cache, pipeline, materials, shutdown, facade, internal-access, manifest, documentation and coordination gates pass
Fidelity: preserves refresh version 2 and rebuild/fallback transitions; asset-backed visual parity remains unclaimed

coordination/claims/M03-RND-M2-RUNTIME-MESH-FINALIZER-001.md

@@ -78,9 +78,9 @@ Mesh finalizer while retaining raw-file I/O in the loader.
 
 ## Status
 
-- State: ready
+- State: accepted
 - Done: finalizer, loader/test adapters, transition/rebuild verifier and required documentation
-- Next: integrator merge and post-merge smoke
+- Next: further M2 raw-data I/O/prototype state extraction
 - Blocked by:
 
 ## Handoff
@@ -98,3 +98,13 @@ Mesh finalizer while retaining raw-file I/O in the loader.
   cache/pipeline specs, module registry, `world-renderer.md` and `RENDER.md`.
 
 <!-- OPENWC_HANDOFF:READY:M03-RND-M2-RUNTIME-MESH-FINALIZER-001:ece7724 -->
+
+## Integration
+
+- Merge commit: `1fafdde`
+- Post-merge results: finalizer `cases=11 iterations=100
+  elapsed_ms=54.349`; classifier, extractor, cache, pipeline, materials,
+  shutdown, facade, internal-access `34`, manifest `7/7`, documentation and
+  coordination gates passed.
+
+<!-- OPENWC_INTEGRATION:ACCEPTED:M03-RND-M2-RUNTIME-MESH-FINALIZER-001:1fafdde -->