Add same-net trace segment alignment cleanup

[JorisViaudQuantAI]

/claim #29
/claim #34

Summary

• Adds an aligning_same_net_segments phase after untangling and before turn minimization.
• Aligns close interior same-net horizontal and vertical segments to the longer segment's fixed coordinate, then simplifies the moved path.
• Leaves different nets and endpoint segments unchanged so pin attachments are preserved.

Tests

• npx bun test tests\solvers\TraceCleanupSolver\align-nearby-same-net-trace-segments.test.ts
• npx bun test tests\solvers\TraceCleanupSolver
• npx biome check lib\solvers\TraceCleanupSolver\TraceCleanupSolver.ts lib\solvers\TraceCleanupSolver\alignNearbySameNetTraceSegments.ts tests\solvers\TraceCleanupSolver\align-nearby-same-net-trace-segments.test.ts
• npm exec --package typescript@5.9.3 -- tsc --noEmit

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
schematic-trace-solver	Ready	Preview, Comment	May 22, 2026 8:47am

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: ddee3e61af

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[JorisViaudQuantAI]

Follow-up b335495 addresses the review concern about moving traces into forbidden space: the alignment phase now rejects candidate moves that increase intersections with chip obstacles, other-net trace obstacles, or other-net label bounds. I also added a regression test for that guard and updated the two example snapshots where same-net alignment is the intended visual change.

Local validation after the fix:

• npx --cache .npm-cache bun test -> 64 pass, 4 skip, 0 fail
• npx --cache .npm-cache biome check ...
• npm exec --cache .npm-cache --package typescript@5.9.3 -- tsc --noEmit