Govern task context and advance execution pointer

docs/status/M16-GAP-00035.md

@@ -0,0 +1,18 @@
+# M16-GAP-00035 Status
+
+status: done
+task: CAST modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: CAST modifier identity, factor, radius, cast mode flags and visibility modes for `mesh:WebGapCastMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapCast` with factor 0.65, radius 2.5 and stable cast flags; save/reopen is exact.
+- WASM/Main exposes the same modifier parameters from the same fixture; save/reopen is exact.
+- Malformed Blend input is rejected without mutating Main.
+- `npm --prefix web run test:generated-gap -- --task M16-GAP-00035` and `node tools/web/check-generated-gap.mjs --task M16-GAP-00035` exited 0.
+
+knownRisk: Full evaluated Cast geometry and editor mutation remain outside this metadata/local-exact modifier slice.
+
+nextTask: `M16-GAP-00036`