Add same-net trace consolidation phase

[ColumbusLabs]

Summary

• add a same-net trace consolidation phase after trace cleanup and before final label placement
• snap close same-net horizontal and vertical segments onto the longest compatible segment coordinate while preserving pin anchors and trace metadata
• reject unsafe snaps that would create diagonals, add chip collisions, or add different-net intersections
• preserve final visualization label metadata so SVG snapshot changes stay focused on trace geometry

Addresses #29 and #34.

Tests

• ~/.bun/bin/bun test tests/solvers/SameNetTraceConsolidationSolver/SameNetTraceConsolidationSolver.test.ts
• ~/.bun/bin/bun test tests/solvers/SchematicTracePipelineSolver/SchematicTracePipelineSolver_sameNetTraceConsolidationPhase.test.ts tests/examples/example37.test.ts
• ~/.bun/bin/bun test
• ~/.bun/bin/bunx tsc --noEmit
• ~/.bun/bin/bun run format:check
• ~/.bun/bin/bun run build

/claim #29

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Project	Deployment	Actions	Updated (UTC)
schematic-trace-solver	Ready	Preview, Comment	May 22, 2026 4:10pm