* test: reproduce #262 (sheet.fold: bend zone reaching the blank outline is reported as a slanted or curved edge)
* fix(sheet): name the bend zone reaching an outline corner instead of blaming a slanted edge (#262)
A fold whose bend zone contains a corner of the panel outline (a fold at a
tab's root) was reported as crossing a slanted or curved edge. Name the
corner and how far to move the fold line to clear it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RjGw4gA5ZvKrU8MQP6sBgT
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Co-authored-by: bherbruck <brennen.herbruck@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>