Add Homebrew installation support

[swiftlysingh]

Summary

• remove the project-local Homebrew formula and related documentation/test wiring
• keep this repository focused on npm/source installation while Homebrew packaging can live in the shared external tap

Testing

• npm run build

  

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch cursor/brew-installation-support-15b6

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[swiftlysingh]

Closing this draft because PR #27 landed the tag-based release flow and version bump for v1.3.0, so this one is superseded.