coordination: hand off cached M2 animation resource observer

coordination/claims/M03-RND-M2-CACHED-ANIMATION-RESOURCE-OBSERVER-001.md

@@ -59,14 +59,23 @@ into a service that produces `M2BuildResourceSnapshot`.
 
 ## Status
 
-- State: active
-- Done: ownership/compatibility contract
-- Next: implementation, verification and documentation
+- State: ready for integration
+- Done: implementation, verification and documentation
+- Next: integrator merge and post-merge acceptance
 - Blocked by:
 
 ## Handoff
 
-- Commit:
-- Results:
-- Remaining risks:
-- Documentation updated:
+- Commit: `df87619` (`render: extract cached M2 animation resource observer`)
+- Results: observer PASS (`33` cases, `20,000` iterations, `61.745ms`);
+  full autonomous suite PASS (`56/56`); renderer checkpoint dry-run PASS (`7/7`);
+  internal-access PASS (`30` private symbols); documentation PASS (`43` module
+  specs); coordination PASS with `34` historical warnings.
+- Remaining risks: successful asynchronous admission is covered by source and
+  existing pipeline regressions because an undrained unit request leaks; generated
+  GLB metadata does not prove Godot import fidelity; private traversal, p95/p99,
+  leak and paired visual evidence remain unavailable; native observation and
+  terminal ResourceLoader polling/finalize remain loader-owned.
+- Documentation updated: new cached observer API/I/O/data-flow/state/sequence/
+  dependency/ownership specification; M2 snapshot, batch/dispatch, animation
+  pipeline/prototype, world-renderer, module registry, `RENDER.md` and M03 Evidence.