Add High Performance Blockchain

[pk-850]

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PR-Codex overview

This PR introduces the High Performance Blockchain (HPB) by adding a new chain definition and exporting it for use in the application.

Detailed summary

• Added a new entry in .changeset/fair-plants-glow.md for the HPB patch.
• Exported hpb from src/chains/index.ts.
• Created src/chains/definitions/hpb.ts with:
  • Chain ID: 269
  • Name: 'High Performance Blockchain'
  • Native currency: HPB (symbol: HPB, decimals: 18)
  • RPC URL: https://hpbnode.com
  • Block explorer: hpbScan with URL https://hscan.org
  • Set as not a testnet.

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[changeset-bot]

🦋 Changeset detected

Latest commit: b9703bf

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
viem	Patch

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