Add phpunit.xml and tests/Pest.php for standalone test execution.
Apply Laravel Pint formatting fixes across all source files.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Align commerce module with the monorepo module structure by updating
all namespaces to use the Core\Mod\Commerce convention. This change
supports the recent monorepo separation and ensures consistency with
other modules.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>