coordination: claim M2 animation resource finalizer

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

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+# M03-RND-M2-ANIMATION-RESOURCE-FINALIZER-001
+
+<!-- OPENWC_CLAIM:M03-RND-M2-ANIMATION-RESOURCE-FINALIZER-001:sindo-main-codex:2026-07-20 -->
+
+## Owner
+
+- Agent ID: `sindo-main-codex`
+- Target: M03 Renderer Facade and Safe Extraction
+- Branch: `work/sindo-main-codex/m03-m2-animation-resource-finalizer`
+- Worktree: `C:\Users\sindo\open-wc-worktrees\m03-m2-animation-resource-finalizer`
+
+## Outcome
+
+Move cached animated M2 ResourceLoader status polling, terminal Resource load,
+candidate finalization, prototype/static-only adoption and success diagnostics
+from the loader into a dedicated two-phase finalization service.
+
+## Non-goals
+
+- Change cached animation eligibility, request admission or native-first order.
+- Move material-prototype lookup, permit ownership, playback or materialization.
+- Change ResourceLoader status order, cache formats, profiles or visible output.
+- Generalize static and animated ResourceLoader paths behind callbacks/frameworks.
+
+## Paths
+
+- Exclusive: `src/render/m2/m2_animation_resource_finalizer.gd`,
+  `src/tools/verify_m2_animation_resource_finalizer.gd`,
+  `docs/modules/m2-animation-resource-finalizer.md`, this claim
+- Shared: loader, animation pipeline/scene finalizer/prototype cache/cached
+  observer/world-renderer specs and verifiers, module registry, `RENDER.md`, M03 Evidence
+
+## Contracts and data
+
+- Pending request snapshots are polled in existing Dictionary insertion order.
+- Empty Resource paths are discarded and marked static-only immediately.
+- Only LOADED/FAILED statuses move into completion-order finalize FIFO.
+- One permit processes one popped terminal record, including skipped/stale records.
+- Existing prototype/static-only state suppresses terminal Resource loading.
+- LOADED Resource is instantiated before material-prototype lookup is requested.
+- Candidate repair/finalize/adoption and exact `M2_ANIM_CACHE` debug fields remain.
+- Rejected candidates are released by the existing animated scene finalizer.
+
+## Dependencies
+
+- Requires: accepted animation pipeline, scene finalizer, cached/native observers
+- Blocks: remaining loader-owned M2 material-prototype lookup and action execution
+
+## Verification
+
+- Synthetic polling/status/FIFO/skip/load/candidate/repair/adoption/log/source and
+  timing contracts; adjacent M2/renderer gates; full headless suite and checkpoint dry-run.
+
+## Documentation deliverables
+
+- Inline API docs; module API/I/O/ownership; data-flow/state/sequence/dependency
+  diagrams; adjacent renderer docs and M03 Evidence.
+
+## Status
+
+- State: active
+- Done: ownership/compatibility contract
+- Next: implementation, verification and documentation
+- Blocked by:
+
+## Handoff
+
+- Commit:
+- Results:
+- Remaining risks:
+- Documentation updated: