smlib: solidcore's torus check and step-wall opt-ins are on: the torus check reads its V interval, a spindle torus through its apex is a self-intersection, and a local operation builds the step wall between tangent faces moved apart

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNXLXkZLQ6T7TSi4wswcmk

crates/smlib/src/core.rs

@@ -175,6 +175,9 @@ pub(crate) fn fixes() -> UpstreamFixes {
     f.curve_tight_box_interval_knots = true;
     f.fillet_refuse_overlapping_bands = true;
     f.ssi_tangent_curve_tracer = true;
+    f.torus_check_reads_v_interval = true;
+    f.torus_check_spindle_apex = true;
+    f.local_operation_step_walls = true;
     f
 }