Convert the SegmentTree to be able to use an rbush or flattree spatial index

[seveibar]

CC @akhilender-bongirwar

/bounty $40

[algora-pbc]

💎 $40 bounty • tscircuit

Steps to solve:

1. Start working: Comment /attempt #102 with your implementation plan
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Thank you for contributing to tscircuit/unravel-autorouter!

Attempt	Started (UTC)	Solution	Actions
🟢 @akhilender-bongirwar	Apr 26, 2025, 10:43:22 AM	#105	Reward