Add GitHub Copilot workspace setup workflow

[Copilot]

Adds .github/workflows/copilot-setup-steps.yml to automate development environment setup with Deno, Node.js, and Bun runtime installations.

Setup workflow features:

• Uses GitHub Actions to set up Deno via denoland/setup-deno@v2 (latest)
• Uses GitHub Actions to set up Node.js via actions/setup-node@v4 (latest)
• Uses GitHub Actions to set up Bun via oven-sh/setup-bun@v2 (latest)
• Verifies all tool installations and reports versions

Network access:
Documented comprehensive network access in workflow and AGENTS.md for: har.io, npmjs.org, registry.npmjs.org, deno.land, jsr.io, github.com, raw.githubusercontent.com, bun.sh, wikipedia.org

The setup is configured as a GitHub Actions workflow file following GitHub Copilot's documentation for customizing the agent environment.

Original prompt

add a copilot setup file which installs deno, node and bun, and allows har.io, npmjs.org, deno website, wikipedia and github

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[Hexagon]

@copilot check this url for more information https://docs.github.com/en/copilot/how-tos/use-copilot-agents/coding-agent/customize-the-agent-environment

[Hexagon]

@copilot preparations should be handled in .github/workflows/copilot-setup-steps.yml , not in a sh file

[Copilot]

@copilot preparations should be handled in .github/workflows/copilot-setup-steps.yml , not in a sh file

Changed to .github/workflows/copilot-setup-steps.yml using GitHub Actions setup actions for Deno, Node.js, and Bun. Commit: 5aa04fb

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• docs.github.com
  • Triggering command: curl -s REDACTED (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

[Hexagon]

@copilot ensure the latest version of each setup flow is used, also make sure access to related repo sites and documentation sites is available, mention this access in agents.md

[Copilot]

@copilot ensure the latest version of each setup flow is used, also make sure access to related repo sites and documentation sites is available, mention this access in agents.md

Updated to latest action versions (denoland/setup-deno@v2, oven-sh/setup-bun@v2) and documented comprehensive network access including har.io, npmjs.org, registry.npmjs.org, deno.land, jsr.io, github.com, raw.githubusercontent.com, bun.sh, and wikipedia.org in both the workflow file and AGENTS.md. Commit: 9ee021e