feat: Implement promoter payout system for event revenue processing

- Add Payout model with associations to User and Event
- Create payout requests for completed events with proper earnings calculation
- Exclude refunded tickets from payout calculations
- Add promoter dashboard views for managing payouts
- Implement admin interface for processing payouts
- Integrate with Stripe for actual payment processing
- Add comprehensive tests for payout functionality

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

BACKLOG.md

@@ -17,7 +17,6 @@
 - [ ] feat: Dynamic pricing based on demand
 - [ ] feat: Profesionnal account. User can ask to change from a customer to a professionnal account to create and manage events.
 - [ ] feat: User can choose to create a professionnal account on sign-up page to be allowed to create and manage events
-- [ ] feat: Payout system for promoters (automated/manual payment processing)
 - [ ] feat: Platform commission tracking and fee structure display
 - [ ] feat: Tax reporting and revenue export for promoters
 - [ ] feat: Event update notifications to ticket holders
@@ -45,14 +44,9 @@
 - [ ] feat: Event recommendations system
 - [ ] feat: Invitation link. As organizer or promoter, you can invite people
 
-
-### Design & Infrastructure
-
-- [ ] style: Rewrite design system
-- [ ] refactor: Rewrite design mockup
-
 ## 🚧 Doing
 
+- [x] feat: Payout system for promoters (automated/manual payment processing)
 - [ ] feat: Page to display all tickets for an event
 - [ ] feat: Add a link into notification email to order page that display all tickets
 
@@ -68,3 +62,5 @@
 - [x] feat: Ticket inventory management and capacity limits
 - [x] feat: Event discovery with search and filtering
 - [x] feat: Email notifications (purchase confirmations, event reminders)
+- [x] style: Rewrite design system
+- [x] refactor: Rewrite design mockup