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192bf00d31
GizmoWallEdition gains a fourth cursor-anchored icon that spawns a perpendicular branch wall from the cursor's orthogonal projection on the source wall axis. Click forms a T-junction; shift+click forms an L-corner with the source wall trimmed at the projection, keeping its longer portion. The branch inherits the source's spatial container and centerline baseline so its authored axis matches the source's alignment rather than the type's default. Also includes a floor-plane preview quad for the new gizmo, a floor-Z cross line on the split preview for top-down visibility, a small bump to QUAD_ALPHA for clearer preview fills, and a stacking-offset helper that centralises the cursor-row screen-up step across three call sites. Generated with the assistance of an AI coding tool.