Fix missing escape paths for pad-connected ports

[seveibar]

Summary

• add connection-point-aware seed generation for explicit pad and port locations
• run connection seeds after generic edge seeds to preserve finer escape regions near ports
• keep seeding aligned with obstacle clearance handling to avoid changing clearance-equivalence behavior
• add a focused seeding test, a new port-escape-path repro page, and a snapshot repro for the reported input

Testing

• bun test

[vercel]

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Project	Deployment	Actions	Updated (UTC)
rectdiff	Ready	Preview, Comment	Apr 15, 2026 10:45pm