feibisi
39b30af242
feat(commercial): add vendor system for third-party GPL plugin sources
- Add VendorInterface, AbstractVendor, VendorManager for vendor abstraction
- Add WooCommerceVendor for WooCommerce API Manager integration
- Add BridgeManager with hybrid mode (official + vendor + custom sources)
- Add GPLValidator for GPL compliance checking
- Add LicenseProxy for license key management
- Add VendorAdmin with AJAX handlers for vendor CRUD operations
- Add vendors.php admin tab with stats, vendor list, custom plugins
- Add vendor management CSS styles and JS module
- Update main.php to include vendors tab
Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)
Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>