coordination: hand off animated M2 materializer

coordination/claims/M03-RND-M2-ANIMATED-INSTANCE-MATERIALIZER-001.md

@@ -72,14 +72,24 @@ playback startup and batch attachment from `StreamingWorldLoader`.
 
 ## Status
 
-- State: active
-- Done: contract and ownership boundary
-- Next: implementation, verification and documentation
+- State: ready for integration
+- Done: materializer, loader adapter, verifier and required documentation
+- Next: integrator merge and post-merge acceptance
 - Blocked by:
 
 ## Handoff
 
-- Commit:
-- Results:
-- Remaining risks:
-- Documentation updated:
+- Commit: `456f3e2`
+- Results: materializer passes 12 duplication/order/render/playback/diagnostic/
+  source cases and 1,000 instances in 9.267 ms; all 50 autonomous headless
+  verifiers pass, while the proprietary ADT placement probe is unavailable
+  without `data/extracted`; checkpoint dry-run passes 7/7; documentation and
+  coordination gates pass; loader-private inventory remains 30.
+- Remaining risks: private asset traversal/visual comparison, descriptor
+  pressure, leaks and p95/p99 remain unavailable; materialization is still
+  synchronous main-thread work and no original-client comparison is claimed.
+- Documentation updated: inline API; `m2-animated-instance-materializer.md`
+  with data-flow, lifecycle, sequence and dependency diagrams; playback,
+  finalizer, build, world-renderer specs, module registry and `RENDER.md`.
+
+<!-- OPENWC_HANDOFF:READY:M03-RND-M2-ANIMATED-INSTANCE-MATERIALIZER-001:456f3e2 -->