Merge main into the Design tab follow-up

main moved the CAD docs into docs/HLSD/design-tab.md and the offer
generator and atlas into scripts/CAD/ (#15803).

- The four docs this branch had edited are deleted as on main. What the
  branch changes about the design goes into the HLSD doc: the right-click
  is judged by drift over the whole press, with no time budget; a Text
  feature stores its outlines as well as its string, font and height; a
  new section on how the Design canvas renders bodies (studio lighting
  through the shared phong shader, B-rep edge ribbons).
- gen_offer_table.py keeps both main's atlas validation and this
  branch's L() markers on user-facing strings.
- The Text verb's hint is now changed in scripts/CAD/tool_atlas.json as
  well, so `gen_offer_table.py --check` passes.
- DesignPanel.cpp keeps the DesignTextDialog include and main's new
  path in the offer comment.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QK4VgguuCAk2hZLWgcjJb9

src/slic3r/GUI/CAD/DesignPanel.cpp

@@ -2,7 +2,7 @@
 #include "slic3r/GUI/CAD/DesignCanvas.hpp"
 #include "slic3r/GUI/CAD/DesignSketchTool.hpp"
 #include "slic3r/GUI/CAD/DesignTextDialog.hpp"           // Text: font, height, live outline
-#include "slic3r/GUI/CAD/DesignOffer.hpp"                // generated offer table — see docs/ux/tool_atlas.json
+#include "slic3r/GUI/CAD/DesignOffer.hpp"                // generated offer table — see scripts/CAD/tool_atlas.json
 #include "libslic3r/CAD/GeometryEngine.hpp"   // face_by_index for face-extrude gizmo anchor
 #include "libslic3r/TriangleMesh.hpp"     // mesh import: STL/OBJ -> indexed_triangle_set
 #include "libslic3r/Format/OBJ.hpp"
@@ -6106,7 +6106,7 @@ bool DesignPanel::sketch_plane_target(wxString& what) const
 // ---------------------------------------------------------------------------------------------
 // The object-driven offer (charter §4.1). Right-click the geometry and get a vertical list in the
 // ratified row order, with the verbs that do not apply DISABLED IN PLACE carrying their reason.
-// The rows come from DesignOffer.hpp, generated from docs/ux/tool_atlas.json — the same file the
+// The rows come from DesignOffer.hpp, generated from scripts/CAD/tool_atlas.json — the same file the
 // mockups are drawn from, so a drawing and the product cannot drift apart.
 // ---------------------------------------------------------------------------------------------