Update Copilot instructions and setup script

[RyanCavanaugh]

Installing -g hereby was messing with package.json and isn't needed. Clarify some instructions to emphasize the need for format since it keeps missing that.

[Copilot]

Pull Request Overview

This PR removes the global installation of the hereby CLI, switches all calls to npx hereby, and adds guidance to always lint and format before finishing.

• Remove npm install -g hereby from CI steps
• Update documentation to use npx hereby for all build tasks
• Add “Keeping Things Tidy” section to emphasize running lint and format

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
.github/workflows/copilot-setup-steps.yml	Removed global hereby install and rely on npx hereby in CI
.github/copilot-instructions.md	Switched all examples to npx hereby, restructured task listing, and added lint/format tips

Comments suppressed due to low confidence (1)

.github/copilot-instructions.md:275

• This line uses -- instead of a markdown list bullet. Change it to - Always run hereby lintandhereby format before you're done for consistent formatting.

- A full test run may take up to 15 minutes