Untangle generated net-label connector crossings

[ShiboSoftwareDev]

Summary

• add a post-placement cleanup pass limited to traces generated by AvailableNetOrientationSolver
• reuse the existing strict-crossing untangler instead of adding circuit-specific routing logic or increasing an iteration budget
• stop that pass after crossing cleanup so unrelated L-shape aesthetics remain untouched
• flip the focused PMP11282 assertion from one strict crossing to zero and update its SVG snapshot
• update the full PMP11282 SVG, where strict cross-net crossings decrease from 36 to 35 and the targeted V20V2 crossing is removed

This is stacked on #949. The production change is scoped to strict crossings involving generated available-orientation connectors.

Validation

• bun test — 274 pass, 4 skip, 0 fail
• bunx tsc --noEmit
• bun run format:check
• focused PMP11282 crossing count: 1 to 0
• full PMP11282 crossing count: 36 to 35
• full PMP11282 cross-net collinear overlaps: remains 0

[vercel]

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Project	Deployment	Actions	Updated (UTC)
schematic-trace-solver	Ready	Preview	Aug 26, 2026 10:31pm