Add ERC-6492 unwrapping to exact/upto permit2 and batch-settlement

[phdargen]

Description

Base account smart wallet appends Erc6492 info even for already deployed smart accounts.
Exact EVM unwraps ERC-6492 signatures before the onchain USDC transferWithAuthorization call. Batch settlement was verifying the wrapped smart-wallet signature successfully, then passing that wrapped signature into receiveWithAuthorization, which fails during onchain simulation.

-> unwrap signatures with parseErc6492Signature before passing them into onchain calldata
-> also applied to permit2 flows in exact/upto

Tests

Checklist

• I have formatted and linted my code
• All new and existing tests pass
• My commits are signed (required for merge) -- you may need to rebase if you initially pushed unsigned commits
• I added a changelog fragment for user-facing changes (docs-only changes can skip)

[vercel]

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