Tap-qualified tool names can be casks, not formulas

cq from mozilla-ai/tap is currently published as a cask (Casks/cq.rb) and not as a formula. Adding mozilla-ai/tap/cq under formulas causes drift and missing-formula errors in checks. Verified via brew info --formula mozilla-ai/tap/cq on macOS (2026-04).

For tools distributed as Homebrew casks (not formulas), track them under casks in package manifests and use brew info --formula <name> to verify type before adding fully-qualified tap formula names.