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Tommaso BianchiandClaude Opus 5
942f6c28c7
Carries snaporca 0231bd5b68. Parity holds: 17 files identical, 8 diverging as expected. A reflection reverses orientation, so mirror_entities now hands the reflected half back reversed in ORDER and flipped per ENTITY — an arc swapping its angles as well as its ends, a spline reversing its control points. Appending it to the source then yields one walkable chain instead of two halves meeting head-to-head, and a mirrored CCW loop stays CCW. This is the producer half of the confusion that cost three defects; the consumers (offset, and the exact loop area) keep their defensive handling, because that is what makes them correct for hand-built and imported sketches rather than only for geometry this function produced. Contract change, carried with the reason: a mirrored line's p0 is the reflection of the SOURCE's p1, and a mirrored CCW arc keeps a POSITIVE sweep — the reflection negates it, walking it the other way negates it again. Both [SketchEdit] cases updated, and a new [SketchProfile] case "a mirrored half continues the original chain" pins the property directly. Kernel here: all tests passed, 2687 assertions in 232 test cases. GUI target builds and links. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>