Add coleam00/Archon devcontainer feature

[Copilot]

Adds a new feature for installing the archon CLI from coleam00/Archon releases. This wires the feature into the repo’s standard metadata, install, test, and catalog surfaces.

• Feature definition

  • adds src/coleam00-Archon/devcontainer-feature.json
  • uses the requested feature id: coleam00-Archon
  • exposes the standard version option with latest default

• Binary installation

  • adds src/coleam00-Archon/install.sh
  • installs the standalone Linux release binary from GitHub Releases
  • maps supported Debian architectures to Archon’s release asset names (x64, arm64)

• Documentation

  • adds src/coleam00-Archon/NOTES.md
  • documents what Archon is and calls out the compiled-binary requirement for CLAUDE_BIN_PATH when claude is not on the default path

• Feature coverage

  • adds test/coleam00-Archon/test.sh
  • verifies the installed CLI via archon version

• Repository catalog

  • adds the new feature entry to the root README.md table in alphabetical order

Example usage:

"features": {
  "ghcr.io/devcontainer-community/devcontainer-features/coleam00-Archon:1": {}
}

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:

• containers.dev
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node node /home/REDACTED/work/_temp/ghcca-node/node/bin/devcontainer features test --skip-scenarios -f steveyegge-beads -i debian:latest . (dns block)
• docker-images-prod.6aa30f8b08e16409b46e0173d6de2f56.r2.cloudflarestorage.com
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node node /home/REDACTED/work/_temp/ghcca-node/node/bin/devcontainer features test --skip-scenarios -f steveyegge-beads -i debian:latest . (dns block)
• eastus.data.mcr.microsoft.com
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node node /home/REDACTED/work/_temp/ghcca-node/node/bin/devcontainer features test --skip-scenarios -f coleam00-Archon -i ubuntu:latest . (dns block)
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node node /home/REDACTED/work/_temp/ghcca-node/node/bin/devcontainer features test --skip-scenarios -f coleam00-Archon -i mcr.microsoft.com/devcontainers/base:ubuntu . (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)