feat: fix errors in eip-7702 step

[Jwhiles]

Explanation

This PR updates the ChompApiService:createUpgrade call in money-account-upgrade-controller to correct some errors that were revealed in testing. These changes have been verified in the mobile repo, and the step now completes successfully.

References

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed
• I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them

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Note

Medium Risk
Touches the account-upgrade flow and changes the wire format sent to ChompApiService:createUpgrade, which could affect upgrade success if mismatched with backend expectations; scope is small and covered by updated tests.

Overview
Fixes the EIP-7702 authorization step to submit the CHOMP upgrade request with correct parameters: using delegatorImplAddress (not the signer EOA) as address, and sending chainId plus a 0x-prefixed hex nonce (not decimal strings).

Updates unit tests to match the new request shape and documents the fix in the package changelog.

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