* Smart Extrude: direction from the picked side, Cut into a body stays a Cut (#1257)
- A sketch profile (or a thin extrude's curve) extrudes toward the side it was
picked from: from the bottom view it goes down. Body faces still go outward.
- The automatic operation is latched per side of the profile: a drag that starts
into a body is a Cut and stays one past the far side; a Join does not become a
Cut when it reaches another body. Passing through zero decides afresh for the
new side.
- An explicit operation, Direction or Reverse ends the automatic choices.
- auto_operation also looks just past the profile, so a long cut through a body
reads as a Cut from the start (the engine's operation: "auto" too).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Scenario s07: the XZ profile seen from behind now extrudes toward the camera
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
