[Smart Accounts Kit][Advanced Permissions] Add new permissions types

[AyushBherwani1998]

Description

• Add new permission types for ERC-20 and native token.

Issue(s) fixed

Fixes #

Preview

Checklist

• If this PR updates or adds documentation content that changes or adds technical meaning, it has received an approval from an engineer or DevRel from the relevant team.
• If this PR updates or adds documentation content, it has received an approval from a technical writer.

External contributor checklist

• I've read the contribution guidelines.
• I've created a new issue (or assigned myself to an existing issue) describing what this PR addresses.

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Note

Low Risk
Low risk documentation-only changes that add examples and reference tables for new permission types plus minor wording fixes.

Overview
Documents new fixed-allowance Advanced Permissions for both ERC-20 and native tokens, including new guide sections and runnable requestExecutionPermissions examples.

Updates the permissions reference to include parameter tables and examples for erc20-token-allowance and native-token-allowance, and applies minor copy edits/typo fixes in existing periodic/stream examples.

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Project	Deployment	Actions	Updated (UTC)
metamask-docs	Ready	Preview, Comment	May 13, 2026 10:56am