Antoine 8b9fc31bcd feat: auto-detect fillet arcs in v1 flat polyline boundaries ...

Detects pairs of consecutive 135° vertices (characteristic of filleted
90° corners) and reconstructs circular arcs from tangent-perpendicular
intersection. Verified on sandbox 2: 2 arcs detected at R=7.5mm with
correct centers. Chain continuity validated.

When arcs are detected, v1 boundaries get promoted to v2 typed segments
and the polyline is re-densified with proper arc interpolation.

2026-02-17 18:05:14 +00:00

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