[WIP] Add Copilot setup instructions and agent templates

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Original prompt

Create a pull request that merges the branch copilot-setup-steps into main for the repository MunyayLLC/https-github.com-joe10832-onchaintestkit. The PR should add GitHub Copilot setup and agent instruction files already committed to the copilot-setup-steps branch:

Files included on branch:

• .github/copilot-instructions.md
• AGENTS.md
• CLAUDE.md
• GEMINI.md

Requirements for the pull request:

• PR title: "Add Copilot setup instructions and agent templates"
• PR body: Brief description of the changes, why they are added, validation workflow info, and instructions to maintainers to review secrets or integrations before enabling agents.
• Target base branch: main
• Head branch: copilot-setup-steps

Do not include assignees or reviewers; leave them for the repository maintainers to assign. Create the PR and return the PR URL and number.

This pull request was created as a result of the following prompt from Copilot chat.

Create a pull request that merges the branch copilot-setup-steps into main for the repository MunyayLLC/https-github.com-joe10832-onchaintestkit. The PR should add GitHub Copilot setup and agent instruction files already committed to the copilot-setup-steps branch:

Files included on branch:

• .github/copilot-instructions.md
• AGENTS.md
• CLAUDE.md
• GEMINI.md

Requirements for the pull request:

• PR title: "Add Copilot setup instructions and agent templates"
• PR body: Brief description of the changes, why they are added, validation workflow info, and instructions to maintainers to review secrets or integrations before enabling agents.
• Target base branch: main
• Head branch: copilot-setup-steps

Do not include assignees or reviewers; leave them for the repository maintainers to assign. Create the PR and return the PR URL and number.

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