fix: disable EIP-2612 permits for tokens with non-ASCII names

[chybisov]

Which Jira task is linked to this PR?

LF-16416

Why was it implemented this way?

This PR disables permit usage for tokens whose contract name includes the ₮ character (specifically USD₮0) in the SDK.

Ledger devices currently freeze and crash when signing EIP-712 typed-data permits for this token due to the non-ASCII character in the name field. Since the domain name must match the on-chain token name exactly, we cannot safely normalize or replace the character client-side without breaking signature validation.

Temporary fix:
Fallback to standard approval flow for USD₮0 in the SDK to avoid hardware wallet signing failures.

Impact:
No functional change for non-affected tokens.
Users holding USD₮0 on supported chains will complete approvals via the standard approve transaction instead of permit.

We’ll re-enable permits once Ledger resolves Unicode support in typed-data signing.

Checklist before requesting a review

• I have performed a self-review and testing of my code.
• This pull request is focused and addresses a single problem.
• If this PR modifies the SDK API or adds new features that require documentation, I have updated the documentation in the public-docs repository.