Phase 2: PayPal Subscription System with 7-Day Free Trial

[codegen-sh]

💳 PayPal Subscription System Implementation

This PR implements the complete PayPal subscription system for the AI-driven advertising platform, enabling monetization with a $30/month subscription model and a 7-day free trial.

🔑 Key Features

Backend Implementation

• Subscription Model: Created comprehensive schema with trial/active/cancelled states
• PayPal Integration: Implemented service for payment processing with PayPal REST API
• Subscription Routes: Added endpoints for subscription management
• Webhook Handling: Set up PayPal webhook processing for payment events

Frontend Implementation

• Subscription Screen: Built UI for plan selection, management, and payment history
• Redux Integration: Created subscription slice for state management
• Profile Integration: Updated profile to show subscription status
• Navigation: Added subscription tab to main navigation

💰 Subscription Plans

• Monthly Plan: $30/month
• Annual Plan: $300/year (save $60)
• Free Trial: 7-day trial period before payment

🔄 User Flows

• Trial Signup: Users automatically get 7-day trial on registration
• Subscription Activation: PayPal checkout flow with return URL handling
• Plan Management: Users can change plans or cancel subscription
• Payment History: View past payments and subscription status

📝 Technical Notes

• PayPal merchant email configured to boyboyjim@gmail.com
• Environment variables added for PayPal configuration
• Webhook verification implemented for secure payment processing

This completes Phase 2 of the development roadmap, enabling immediate monetization of the platform.

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