Paddle support

Paddle joins Polar, Lemon Squeezy, PayPal, and Gumroad as a fully supported payment provider. Connect it, sync member access on completed transactions and subscription changes, and pull your product list straight into the Buy Button dashboard.

• New Paddle connection: API key + webhook secret, sandbox auto-detected
• Paddle products load automatically in the Buy Button dashboard
• Webhook delivery confirmed against a real live purchase