feat: Merge same-net trace lines that are close together (#34)

[ma-moon]

Summary

Adds MergeSameNetTracesSolver to the trace pipeline. When two trace lines belong to the same net and have parallel segments within 0.3 units of each other, they are merged to the same coordinate (midpoint), reducing visual clutter.

Changes

• New: lib/solvers/MergeSameNetTracesSolver/MergeSameNetTracesSolver.ts — Solver that detects close parallel segments on same-net traces and merges them
• Modified: lib/solvers/SchematicTracePipelineSolver/SchematicTracePipelineSolver.ts — Added the new solver to the pipeline after TraceCleanup

Implementation

• Uses globalConnMap.areConnected() to identify traces in the same net
• Finds parallel (horizontal or vertical) segments within 0.3 grid units
• Merges to the midpoint coordinate
• Handles both horizontal (Y merge) and vertical (X merge) segments

Closes #34

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Project	Deployment	Actions	Updated (UTC)
schematic-trace-solver	Ready	Preview, Comment	May 15, 2026 7:05am

[ma-moon]

Hi @seveibar, this PR adds the MergeSameNetTracesSolver for #29. It detects parallel segments on same-net traces within 0.3 units and merges them to the midpoint. Happy to make any adjustments needed!