Add complete subscription commerce entity model

Shipped

1 ஏப்ரல், 2026 அன்று 4:25 PM UTC

Author

Kamo

Commit

a86d539

24 JPA entities, 12 enums, 21 repositories, and 20 new permission rights for the enterprise subscription POS system. Includes plan configuration (plans, prices, features, addons, bundles, volume discounts), order and subscription lifecycle, invoicing, promotions, and agreement generation.