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* Reject ambiguous origin and construction plane names * Reserve origin plane names for construction planes; suggest the other alias A construction plane can no longer be created with or renamed to XY, XZ, YZ, Top, Front or Right, so a plane argument can't become ambiguous in new designs. For older designs that already hold such a plane, the ambiguity error now also names the origin plane's other alias (XY for Top...). The existing tests build those legacy names directly. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> --------- Co-authored-by: bherbruck <brennen.herbruck@gmail.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>