Advance M16 modifier parity and context governance

docs/status/M16-GAP-00076.md

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+# M16-GAP-00076 Status
+
+status: done
+task: LINEART modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Grease Pencil LINEART modifier stack exposure for `object:GreasePencilObject`.
+
+evidence:
+
+- Desktop fixture exposes `Lineart` as LINEART type code 78; save/reopen is exact.
+- WASM/Main exposes LINEART type code 78 and base metadata parameters on the Grease Pencil scene node.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Line Art evaluation remains unavailable; this slice covers modifier stack transport and base metadata.
+
+nextTask: `M16-GAP-00077`

docs/status/M16-GAP-00077.md

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+# M16-GAP-00077 Status
+
+status: done
+task: MASK modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh MASK modifier stack exposure for `mesh:WebGapMaskMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapMask` as MASK type code 27; save/reopen is exact.
+- WASM/Main exposes MASK type code 27 and base metadata parameters on the mesh scene node.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Mask evaluation remains unavailable; this slice covers modifier stack transport and base metadata.
+
+nextTask: `M16-GAP-00078`

docs/status/M16-GAP-00078.md

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+# M16-GAP-00078 Status
+
+status: done
+task: MESH_CACHE modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh MESH_CACHE modifier stack exposure for `mesh:WebGapMeshCacheMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapMeshCache` as MESH_CACHE type code 46; save/reopen is exact.
+- WASM/Main exposes MESH_CACHE type code 46 and base metadata parameters on the mesh scene node.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Mesh Cache evaluation and external cache loading remain unavailable; this slice covers modifier stack transport and base metadata.
+
+nextTask: `M16-GAP-00079`

docs/status/M16-GAP-00079.md

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+# M16-GAP-00079 Status
+
+status: done
+task: MESH_DEFORM modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh MESH_DEFORM modifier stack exposure for `mesh:WebGapMeshDeformMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapMeshDeform` as MESH_DEFORM type code 18; save/reopen is exact.
+- WASM/Main exposes MESH_DEFORM type code 18 and base metadata parameters on the mesh scene node.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Mesh Deform cage binding and evaluation remain unavailable; this slice covers modifier stack transport and base metadata.
+
+nextTask: `M16-GAP-00080`

docs/status/M16-GAP-00080.md

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+# M16-GAP-00080 Status
+
+status: done
+task: MESH_SEQUENCE_CACHE modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh MESH_SEQUENCE_CACHE modifier stack exposure for `mesh:WebGapMeshSequenceCacheMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapMeshSequenceCache` as MESH_SEQUENCE_CACHE type code 52; save/reopen is exact.
+- WASM/Main exposes MESH_SEQUENCE_CACHE type code 52 and base metadata parameters on the mesh scene node.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Mesh sequence cache file loading and evaluation remain unavailable; this slice covers modifier stack transport and base metadata.
+
+nextTask: `M16-GAP-00081`

docs/status/M16-GAP-00081.md

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+# M16-GAP-00081 Status
+
+status: done
+task: MESH_TO_VOLUME modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Volume-object MESH_TO_VOLUME modifier stack exposure for `object:WebGapMeshToVolumeObject`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapMeshToVolume` as MESH_TO_VOLUME type code 58; save/reopen is exact.
+- WASM/Main exposes MESH_TO_VOLUME type code 58 and base metadata parameters on the volume scene node.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Mesh-to-volume conversion evaluation remains unavailable; this slice covers modifier stack transport and base metadata.
+
+nextTask: `M16-GAP-00082`

docs/status/M16-GAP-00082.md

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+# M16-GAP-00082 Status
+
+status: done
+task: MIRROR modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh MIRROR modifier stack exposure for `mesh:WebGapMirrorMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapMirror` as MIRROR type code 5; save/reopen is exact.
+- WASM/Main exposes MIRROR type code 5 and base metadata parameters on the mesh scene node.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Mirror geometry evaluation remains metadata-only; this slice covers modifier stack transport and base metadata.
+
+nextTask: `M16-GAP-00083`

docs/status/M16-GAP-00083.md

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+# M16-GAP-00083 Status
+
+status: done
+task: MULTIRES modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh MULTIRES modifier stack exposure for `mesh:WebGapMultiresMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapMultires` as MULTIRES type code 29; save/reopen is exact.
+- WASM/Main exposes MULTIRES type code 29 and base metadata parameters on the mesh scene node.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: This Blender build lacks OpenSubdiv, so Multires evaluation is disabled; this slice covers modifier stack transport and base metadata.
+
+nextTask: `M16-GAP-00084`

docs/status/M16-GAP-00084.md

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+# M16-GAP-00084 Status
+
+status: done
+task: NODES modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh NODES modifier stack exposure for `mesh:WebGapNodesMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapNodes` as NODES type code 57; save/reopen is exact.
+- WASM/Main exposes NODES type code 57 and base metadata parameters on the mesh scene node.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Geometry Nodes graph evaluation remains outside this slice; this covers modifier stack transport and base metadata.
+
+nextTask: `M16-GAP-00085`

docs/status/M16-GAP-00085.md

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+# M16-GAP-00085 Status
+
+status: done
+task: NORMAL_EDIT modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh NORMAL_EDIT modifier stack exposure for `mesh:WebGapNormalEditMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapNormalEdit` as NORMAL_EDIT type code 50; save/reopen is exact.
+- WASM/Main exposes NORMAL_EDIT type code 50 and base metadata parameters on the mesh scene node.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Normal editing evaluation remains metadata-only; this slice covers modifier stack transport and base metadata.
+
+nextTask: `M16-GAP-00086`

docs/status/M16-GAP-00086.md

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+# M16-GAP-00086 Status
+
+status: done
+task: OCEAN modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh OCEAN modifier stack exposure for `mesh:WebGapOceanMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapOcean` as OCEAN type code 39; save/reopen is exact.
+- WASM/Main exposes OCEAN type code 39 and base metadata parameters on the mesh scene node.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Ocean simulation evaluation and cache data remain unavailable; this slice covers modifier stack transport and base metadata.
+
+nextTask: `M16-GAP-00087`

docs/status/M16-GAP-00087.md

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+# M16-GAP-00087 Status
+
+status: done
+task: PARTICLE_INSTANCE modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh PARTICLE_INSTANCE modifier stack exposure for `mesh:WebGapParticleInstanceMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapParticleInstance` as PARTICLE_INSTANCE type code 20; save/reopen is exact.
+- WASM/Main exposes PARTICLE_INSTANCE type code 20 and base metadata parameters on the mesh scene node.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Particle source binding and instance evaluation remain unavailable; this slice covers modifier stack transport and base metadata.
+
+nextTask: `M16-GAP-00088`

docs/status/M16-GAP-00088.md

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+# M16-GAP-00088 Status
+
+status: done
+task: PARTICLE_SYSTEM modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh PARTICLE_SYSTEM modifier stack exposure for `mesh:WebGapParticleSystemMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapParticleSystem` as PARTICLE_SYSTEM type code 19; save/reopen is exact.
+- WASM/Main exposes PARTICLE_SYSTEM type code 19 and base metadata parameters on the mesh scene node.
+- Web legacy particle pointers remain metadata-only and physics manifest is safely empty for this fixture.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Legacy particle simulation and ParticleSettings linkage are unavailable in Web; only modifier stack transport and base metadata are covered.
+
+nextTask: `M16-GAP-00089`

docs/status/M16-GAP-00089.md

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+# M16-GAP-00089 Status
+
+status: done
+task: REMESH modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh REMESH modifier stack exposure for `mesh:WebGapRemeshMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapRemesh` as REMESH type code 42; save/reopen is exact.
+- WASM/Main exposes REMESH type code 42 and base metadata parameters on the mesh scene node.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Remesh geometry evaluation remains metadata-only; this slice covers modifier stack transport and base metadata.
+
+nextTask: `M16-GAP-00090`

docs/status/M16-GAP-00090.md

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+# M16-GAP-00090 Status
+
+status: done
+task: SCREW modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh SCREW modifier stack exposure for `mesh:WebGapScrewMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapScrew` as SCREW type code 34; save/reopen is exact.
+- WASM/Main exposes SCREW type code 34 and base metadata parameters on the mesh scene node.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Screw geometry evaluation remains metadata-only; this slice covers modifier stack transport and base metadata.
+
+nextTask: `M16-GAP-00091`

docs/status/M16-GAP-00091.md

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+# M16-GAP-00091 Status
+
+status: done
+task: SHRINKWRAP modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh SHRINKWRAP modifier stack exposure for `mesh:WebGapShrinkwrapMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapShrinkwrap` as SHRINKWRAP type code 25; save/reopen is exact.
+- WASM/Main exposes SHRINKWRAP type code 25 and base metadata parameters on the mesh scene node.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Shrinkwrap target binding and deformation evaluation remain metadata-only; this slice covers modifier stack transport and base metadata.
+
+nextTask: `M16-GAP-00092`

docs/status/M16-GAP-00092.md

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+# M16-GAP-00092 Status
+
+status: done
+task: SIMPLE_DEFORM modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh SIMPLE_DEFORM modifier stack exposure for `mesh:WebGapSimpleDeformMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapSimpleDeform` as SIMPLE_DEFORM type code 28; save/reopen is exact.
+- WASM/Main exposes SIMPLE_DEFORM type code 28 and base metadata parameters on the mesh scene node.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Simple Deform geometry evaluation remains metadata-only; this slice covers modifier stack transport and base metadata.
+
+nextTask: `M16-GAP-00093`

docs/status/M16-GAP-00093.md

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+# M16-GAP-00093 Status
+
+status: done
+task: SKIN modifier LOCAL_EXACT slice
+updated: 2026-08-20 America/New_York
+
+scope: Mesh SKIN modifier stack exposure for `mesh:WebGapSkinMesh`.
+
+evidence:
+
+- Desktop fixture exposes `WebGapSkin` as SKIN type code 42; save/reopen is exact.
+- WASM/Main exposes SKIN type code 42 as `METADATA_ONLY`, including branch smoothing, skin flags, and symmetry axes; save/reopen is exact.
+- Malformed Blend input is rejected without mutating Main.
+- Generator, npm comparator, and direct comparator exited 0.
+
+knownRisk: Skin geometry evaluation remains metadata-only; this slice covers modifier stack transport and stable modifier metadata.
+
+nextTask: `M16-GAP-00094`