Compares local app versions against published versions on Hex.
Uses mix hex.info <package> to query the Hex registry.
Summary
Types
Functions
Checks all apps and returns their publish status.
Returns a list of maps with :app, :local, :hex, and :status keys.
Like check/1 but operates on an already-discovered list of apps.
Skips the Workspace.discover/1 call so callers (e.g. renderers) that
already hold the workspace can avoid scanning mix.exs files twice.