refactor(tempo): use Ox WithdrawalSenderTag

[struong]

Summary

Replaces Viem’s private withdrawal sender-tag helper with the public WithdrawalSenderTag utility from Ox. Targets Viem v3, which already uses the Ox 1.x line.

Motivation

The sender tag is a protocol-level Tempo Zones value and should have one public implementation shared by Viem, Privy, and other consumers. Viem main/2.55.x remains on Ox 0.14.x and requires the broader Ox 1.x migration before it can consume this API.

Changes

• Updated Ox to the preview from feat(tempo): add WithdrawalSenderTag ox#348: https://pkg.pr.new/ox@f126804.
• Imported WithdrawalSenderTag from ox/tempo in requestWithdrawalSync.
• Removed Viem’s duplicate private helper.
• Updated the withdrawal test to compare against the public Ox utility.

Testing

• pnpm test src/tempo/actions/zone/requestWithdrawal.test.ts --bail=1
• pnpm check
• pnpm check:types
• pnpm build
• pnpm test:build

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Project	Deployment	Actions	Updated (UTC)
viem	Error		Jul 31, 2026 10:00pm