Complete M16 action select circle parity

docs/status/M16-GAP-00109.md

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+# M16-GAP-00109 Status
+
+status: done
+task: WAVE modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh WAVE modifier stack exposure for `mesh:WebGapWaveMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapWave` as WAVE type code 7 with height 0.65, width 1.75, and speed 0.42; save/reopen is exact.
+- WASM/Main exposes the same WAVE stack entry and matching height, width, speed, and generic visibility flags; save/reopen is exact.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Wave deformation evaluation remains metadata-only; this slice covers modifier stack transport and selected parameter metadata.
+
+nextTask: `M16-GAP-00110`