Complete M16 action select circle parity

docs/status/M16-GAP-00103.md

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+# M16-GAP-00103 Status
+
+status: done
+task: VERTEX_WEIGHT_EDIT modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh VERTEX_WEIGHT_EDIT modifier stack exposure for `mesh:WebGapVertexWeightEditMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapVertexWeightEdit` as VERTEX_WEIGHT_EDIT type code 36; save/reopen is exact.
+- Reader name table now uses Blender's canonical VERTEX_WEIGHT_EDIT name for type code 36; rebuilt WASM/Main exposes the same stack entry with matching generic flags.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, direct comparator, and WebEngine build exited 0.
+
+knownRisk: Vertex weight editing evaluation remains metadata-only; this slice covers modifier stack transport and base metadata only.
+
+nextTask: `M16-GAP-00104`