2404 sdkv3 transaction request in walletclient

[lucanicoladebiasi]

Description

The Viem compatible packages/sdk/src/viem/clients/WalletClient.ts uses the original Viem account to sign according Thor rules, supporting the "transaction request paradigm.

The signTransactionRequest and sendTransaction methods accept

• PrepareTransactionRequestRequest Viem compatible transaction request intended to be sponsored or not, the wallet signs as origin;
• TransactionRequest Thor compatible transaction request, intended to be sponsored or not, the wallet signs as origin;
• SignedTransactionRequest to be sponsored the wallet signs as gas payer.

The packages/sdk/src/thor/thorest/transactions/model/Transaction.ts and related classes and interfaces are now obsolete and ready to be removed.

Fixes #2404

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• yarn test:unit
• yarn test:solo

Test Configuration:

• Node.js Version: v24.0.0
• Yarn Version: 1.22.22

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✨ Finishing Touches

🧪 Generate unit tests

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch 2404-sdkv3---transaction-request-in-walletclient

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