fix(sdk-coin-eth): fix the verify confidential transfer for zama

[MohammedRyaan786]

TICKET: CHALO-696

This pull request adds support for verifying direct confidential token transfers for hot/TSS EOA wallets, in addition to the existing multisig/smart-contract wallet path. The main changes include updating the confidential transfer verification logic to handle both transaction shapes, adding a new decoder for direct confidentialTransfer calldata, and extending the test suite to cover the new path.

Confidential transfer verification improvements:

• Updated Erc7984Token.verifyTransaction to support both sendMultiSig-wrapped (multisig/smart-contract wallet) and direct (hot/TSS EOA wallet) confidential transfer transactions. The code now detects the transaction shape by method ID and extracts the token contract address and transfer parameters accordingly. [1] [2] [3]
• Added a new decoder function decodeDirectConfidentialTransferCalldata in utils.ts to parse direct confidentialTransfer calldata and extract the recipient, encrypted handle, and input proof.
• Updated imports in erc7984Token.ts to include the new decoder and relevant method IDs.

Testing enhancements:

• Added a comprehensive test suite for direct confidentialTransfer verification, including positive and negative cases, to ensure the new path is correctly handled.

[linear-code]

CHALO-696