coord(M03): hand off environment snapshot facade

coordination/claims/M03-RND-FACADE-ENVIRONMENT-001.md

@@ -83,14 +83,35 @@ checkpoint time setup away from direct sky-controller property mutation.
 
 ## Status
 
-- State: claimed
-- Done: contract scope and ownership published
-- Next: implement value, facade/controller adapter, migration, tests and docs
+- State: ready-for-review
+- Done: immutable value, facade/controller adapter, checkpoint migration,
+  regressions and renderer module documentation
+- Next: M03 integrator reviews and merges `2ee647a`
 - Blocked by:
 
+<!-- OPENWC_HANDOFF:READY:M03-RND-FACADE-ENVIRONMENT-001:2ee647a -->
+
 ## Handoff
 
-- Commit:
-- Results:
-- Remaining risks:
-- Documentation updated:
+- Commit: `2ee647a`
+- Results: `WorldEnvironmentSnapshot` normalizes finite time into one day and
+  exposes non-finite failure explicitly. `WorldRenderFacade` delegates the
+  immutable value to the existing sky controller; checkpoint capture no longer
+  locates or mutates that controller directly.
+- Verification: snapshot `contract=5`; facade `delegation=6 ground_contract=2
+  environment_contract=7 runtime_scenes=2 tools=3`; internal access `43/7/9/1`;
+  terrain, coordinate (`files=116 consumers=5`), manifest (`7/7`), shutdown,
+  scheduler (`20000` iterations), planner (`250` iterations), focus, editor parse,
+  dry-run capture, coordination, documentation and diff gates passed.
+- Fidelity: applying a snapshot retains the previous three fixed-clock assignments
+  and leaves DBC profile/area/skybox lookup, interpolation, fog, sun, shader,
+  cache and streaming rules unchanged. Dry-run retained all seven plans and
+  reported dusk as `time=19.00`. No build-12340 parity claim is added.
+- External/local inputs: ignored native DLL and generated ADT resource scripts
+  were copied from master for parse/dry-run only. Missing proprietary ADT/DBC/
+  character data produced expected degraded diagnostics.
+- Remaining risks: the snapshot currently covers exact world time only; weather,
+  indoor state and asset-backed paired zone-transition evidence remain open.
+- Documentation updated: inline value/facade/controller API plus world-renderer
+  API/input-output/data-flow/sequence/ownership/failure/capability/source-map and
+  `RENDER.md` implementation notes.