resolveSharedTailwindEntry

Resolves a Tailwind entry CSS path for a package that does not ship its own globals.cssglobals.css.

Many monorepo packages (shared UI primitives, utility libraries) consume tokens from a sibling app's Tailwind setup rather than declaring their own @import 'tailwindcss'@import 'tailwindcss' entry. The canonical-class lint rules still need a CSS file to resolve the Tailwind scale against, so we point them at a consuming app's globals.cssglobals.css.