Ease Buzz Payment Gateway Integration

REQUEST_SUMMARY_V2 Problem - Current System: Currently, payment gateways like Razorpay and Stripe are integrated with Spur to create payment links within automation flows and trigger subsequent actions based on payment success or failure. Suggested Feature: Implement integration with the Ease Buzz payment gateway to allow the creation of payment links within automation flows. This integration should also trigger next steps when a payment is successful or fails, similar to the existing integrations with Razorpay and Stripe. This feature will provide more options for payment processing and streamline automation workflows. Requested by Pink Bloom Expected behavior - Expose clear integration setup and mapping flow - Support reliable sync with retries and visible failure states - Allow users to verify successful data movement end-to-end Business impact - Reduces manual operational effort for teams - Improves consistency and customer experience - Helps teams move faster with fewer support escalations Legacy category: New Feature