Drawing data can fix a fillet's center slightly off the tangent normal, so
the arc's end sits ~1e-7 past its neighbouring line's end. The slide contact
classifier only joined entities within 1e-7, so a contact at that tangent
point read as two boundaries, was classified ambiguous and blocked the push.
In N26-243 this stopped a part pushed left along another once the parts
aligned. Contacts within 1e-6 of a joint now take the joint's tangents;
the 1e-7 incidence tolerance is unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
ajandClaude Opus 5.5
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