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Tommaso BianchiandClaude Opus 4.8
2da75d28ca
Two features bridging sheet bodies back to solids and to other sheets: ThickenSurface feeds a whole sheet shell to MakeThickSolidBySimple (the same OCCT recipe the face-level Thicken already uses) and appends the result as a solid; SurfaceOffset offsets a sheet's shell along its normals via MakeOffsetShape::PerformBySimple, keeping it open. Both refuse a non-sheet target with a clear error. Purely additive: two enum values appended to CadFeatureType, reusing the existing target_body / thicken_thickness / thicken_flip / plane_offset fields. No new cereal fields, recipe stays v2, golden fixture unchanged (30773). MCP thicken_surface/surface_offset added as pure additions. Suite 103 cases / 1520 assertions green. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01BVzKmX6Y1aEteit1HTXG4Q