feat: add WeaveVM Alphanet chain

[maxknivets]

PR-Codex overview

This PR introduces a new blockchain definition for the WeaveVM Alphanet chain, including its configuration and export in the project.

Detailed summary

• Added a new entry for WeaveVM Alphanet in .changeset/wild-guests-do.md.
• Exported weaveVMAlphanet from src/chains/index.ts.
• Created weavevmAlphanet.ts with chain details:
  • ID: 9496
  • Name: 'WeaveVM Alphanet'
  • Native currency: 'Testnet WeaveVM' (symbol: tWVM, decimals: 18)
  • RPC URL: https://testnet-rpc.wvm.dev
  • Block explorer: https://explorer.wvm.dev
  • Marked as a testnet.

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[changeset-bot]

🦋 Changeset detected

Latest commit: 2e3c144

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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