Initialize Homebrew tap repository scaffolding

[Copilot]

Sets up the foundational structure for coreruleset/homebrew-tap, the official Homebrew tap for OWASP CRS tools.

Structure

• Casks/.gitkeep — placeholder; populated automatically by GoReleaser on crs-toolchain releases
• Formula/.gitkeep — placeholder for future standard formulae

README

Covers brew tap, brew install --cask, upgrade, and uninstall flows; notes GoReleaser automation; links to coreruleset/crs-toolchain and coreruleset.org.

CI (.github/workflows/test.yml)

Runs brew audit --cask + brew style on push/PR to main via homebrew/actions/setup-homebrew. Skips gracefully (exit 0) when no .rb files exist in Casks/. Token scoped to contents: read.

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:

• https://api.github.com/graphql
  • Triggering command: `/usr/bin/gh gh pr create --title Initialize Homebrew tap repository scaffolding --body ## Summary

Sets up the basic scaffolding for coreruleset/homebrew-tap, the official Homebrew tap for OWASP CRS tools.

Changes

• Casks/.gitkeep ��� tracks the Casks/ directory (auto-populated by GoReleaser on releases)
• **Formula/.gitkeep (http 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)

Original prompt

Title: Initialize Homebrew tap repository scaffolding

Body:

Set up the basic scaffolding for coreruleset/homebrew-tap, the official Homebrew tap for OWASP CRS tools.

Requirements

Directory structure:

• Casks/ — directory for cask formulae (will be auto-populated by GoReleaser on releases from coreruleset/crs-toolchain). Add a .gitkeep to ensure the directory is tracked.
• Formula/ — directory for standard formulae (future use). Add a .gitkeep.

README.md should include:

• Repository description: "Official Homebrew tap for OWASP CRS tools"
• Installation instructions using brew tap coreruleset/tap followed by brew install --cask crs-toolchain for example
• Upgrade instructions using brew upgrade --cask crs-toolchain
• Uninstall instructions
• A note explaining that cask formulae are automatically updated via GoReleaser on each release of crs-toolchain or other tools
• Link to the main coreruleset/crs-toolchain repository
• Link to the OWASP CRS project site (https://coreruleset.org)

LICENSE — use Apache-2.0, consistent with the rest of the coreruleset org.

CI (.github/workflows/test.yml):

• A workflow that runs on push and PR to main
• Uses homebrew/actions/setup-homebrew to set up brew
• Runs brew audit --cask and brew style against any cask files in Casks/ if they exist
• Can be skipped if no .rb files are present yet (exit 0 gracefully)

Do NOT create any actual cask .rb formula files — those will be generated and pushed automatically by GoReleaser from the crs-toolchain release pipeline.