The heading structure creates confusion with nested H1 headers. The embedded content should use H2 or H3 headings to maintain proper document hierarchy under the "Additional Instructions" section..github/instructions/wallet-integration.instructions.md

[joe10832]

The heading structure creates confusion with nested H1 headers. The embedded content should use H2 or H3 headings to maintain proper document hierarchy under the "Additional Instructions" section.

### Wallet Integration Instructions for Onchain Test Kit

Originally posted by @copilot-pull-request-reviewer in #53 (comment)