Samir Boulahtit
9d8d5e7138
feat: add subscription and billing system with Stripe integration
- Add database models for subscription tiers, vendor subscriptions,
add-ons, billing history, and webhook events
- Implement BillingService for subscription operations
- Implement StripeService for Stripe API operations
- Implement StripeWebhookHandler for webhook event processing
- Add vendor billing API endpoints for subscription management
- Create vendor billing page with Alpine.js frontend
- Add limit enforcement for products and team members
- Add billing exceptions for proper error handling
- Create comprehensive unit tests (40 tests passing)
- Add subscription billing documentation
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>