Add multi-provider payment infrastructure with ClickBank, PayPal, Stripe affiliate tracking, and automated CI/CD deployment#3

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copilot/add-clickbank-paypal-integration

Commits on Jan 4, 2026

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Add complete ClickBank payment integration with production-ready API

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Add production-ready ClickBank payment integration with IPN webhook support

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Add complete PayPal payment integration with webhook support

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Add self-healing infrastructure with circuit breakers, retry logic, and health checks

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Add production deployment configs for Railway and DigitalOcean with health probes

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Update README with payment provider documentation and deployment options

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Commits on Jan 8, 2026