[WIP] ✨ Set up Copilot instructions

[Copilot]

Thanks for assigning this issue to me. I'm starting to work on it and will keep this PR's description up to date as I form a plan and make progress.

Original issue description:

Configure instructions for this repository as documented in Best practices for Copilot coding agent in your repository.

Fixes #71.

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💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

[Copilot]

@SmokeHound 👋 This repository doesn't have Copilot instructions. With Copilot instructions, I can understand the repository better, work faster and produce higher quality PRs.

I can generate a .github/copilot-instructions.md file for you automatically. Click here to open a pre-filled issue and assign it to me. I'll write the instructions, and then tag you for review.

[netlify]

✅ Deploy Preview for workshop-order ready!

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😎 Deploy Preview	https://deploy-preview-72--workshop-order.netlify.app
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[Copilot]

Copilot wasn't able to review any files in this pull request.

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_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[coderabbitai]

Important

Review skipped

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To trigger a single review, invoke the @coderabbitai review command.

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

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