Continue Blender Web parity task handoff

docs/status/M16-GAP-00213.md

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+# M16-GAP-00213 Status
+
+status: done
+task: anim.version_bone_hide_property operator LOCAL_EXACT slice
+updated: 2026-08-22 America/New_York
+
+scope:
+
+- The minimal fixture contains one selected armature object, one bone, an armature-data Action with `bones["WebGapVersionBoneHideBone"].hide`, and an object Action with an anchor channel.
+- Desktop runs `ANIM_OT_version_bone_hide_property` (`poll=true`, `FINISHED`) and copies the hide F-curve into the object Action as `pose.bones["WebGapVersionBoneHideBone"].hide`, retaining the armature source channel.
+- The existing Main reader exposes both Action channels and the armature data; no unrelated data-block, editor, or browser behavior was changed.
+
+evidence:
+
+- Desktop evidence records `BONE_HIDE_FCURVE_MOVED_TO_OBJECT_ACTION` and exact save/reopen. Repeated checker runs preserve the initial report and fixture hash.
+- WASM/Main observes the copied object channel with frames 1 and 10 and values 0 and 1, retains the armature Action channel, preserves both across save/reopen, and rejects malformed Blend input without Main mutation.
+- The generator, npm comparator, direct comparator, and task-context checks passed. Chromium-only policy was preserved; no Firefox/WebKit run was made.
+
+nextTask: `M16-GAP-00214`