fix: use brews instead of homebrew_casks in goreleaser

[cwalton]

Summary

• Switches GoReleaser config from homebrew_casks to brews
• Changes output directory from Casks to Formula
• Replaces the casks-only completions: shorthand with an explicit install: block (including shell completions for bash, zsh, and fish)
• Adds a test: block

Root cause

homebrew_casks is GoReleaser's DSL for macOS GUI apps distributed as .dmg/.pkg installers. fizzy is a CLI binary in a tarball — it should use brews, which generates a standard Homebrew Formula. The previous config was generating a Cask and writing it to Casks/ in the tap, so brew install basecamp/tap/fizzy was never resolvable.

Verification

The generated formula in dist/homebrew/Formula/fizzy.rb (produced by goreleaser release --snapshot --clean) confirms correct output: platform-specific on_macos/on_linux blocks, proper binary install, shell completions, and a passing test block.

Fixes #107
Fixes #70

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Summary by cubic

Fix Homebrew publishing for fizzy by switching GoReleaser from casks to formulae. This makes brew install basecamp/tap/fizzy work as expected.

• Bug Fixes
  • Replace homebrew_casks with brews to generate a Homebrew Formula for the CLI.
  • Output to Formula/ instead of Casks/.
  • Add explicit install block to install the binary and completions (bash, zsh, fish).
  • Add a test block that runs fizzy version.

^{Written for commit 1410fc9. Summary will update on new commits.}

[github-actions]

Sensitive Change Detection (shadow mode)

This PR modifies control-plane files:

• .goreleaser.yaml

Shadow mode — this check is informational only. When activated, changes to these paths will require approval from a maintainer.

[cubic-dev-ai]

No issues found across 1 file

[Copilot]

Pull request overview

Updates the GoReleaser configuration to publish fizzy to the Homebrew tap as a standard Formula (not a Cask), so brew install basecamp/tap/fizzy resolves and installs correctly.

Changes:

• Replace homebrew_casks with brews and switch the tap output directory from Casks/ to Formula/.
• Replace the cask-only completions: shorthand with an explicit install: script that installs the binary and bash/zsh/fish completions.
• Add a Homebrew test: block that runs fizzy version.

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