feat(tempo): add TIP-1004 token permit/read actions

[odupontt]

What is this PR solving?

This PR adds missing viem/tempo token actions for TIP-1004 functions that already exist in the tip20 ABI (from #4442): permit, nonces, DOMAIN_SEPARATOR, and optedInSupply.

Without these actions, users need to call readContract/writeContract manually.
This change adds first-class action support and wires it into the Tempo decorator:

• token.permit
• token.permitSync
• token.getNonce
• token.getDomainSeparator
• token.getOptedInSupply

It also includes JSDoc examples and action tests for the new behavior.

What alternatives have you explored?

• Keep ABI-only support and rely on manual contract calls in userland.
• Add read actions only and skip permitSync.

I chose full action coverage to match existing token action patterns and keep API ergonomics consistent.

Are there any parts that require more attention from reviewers?

Please double-check:

• permit.call argument ordering: [owner, spender, value, deadline, v, r, s]
• permitSync log parsing via Approval event extraction
• getNonce account resolution (parameters.account ?? client.account) and missing-account behavior

Tests

Added tests in src/tempo/actions/token.test.ts for:

• permit end-to-end flow (signature, allowance update, nonce increment)
• getDomainSeparator
• getNonce (default + explicit account)
• getOptedInSupply

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