- Add POST /api/webhooks/stripe endpoint for Stripe event processing
- Handle payment_intent.succeeded: mark invoice as paid, set paymentMethod=card
- Handle payment_intent.payment_failed: record failure reason on invoice
- Handle charge.refunded: mark invoice as void
- Handle charge.dispute.created: log dispute
- Idempotency: skip if stripePaymentIntentId already recorded
- Add stripe_payment_intent_id, stripe_refund_id, payment_failure_reason columns
- Requires STRIPE_WEBHOOK_SECRET env var for signature verification
Co-Authored-By: Paperclip <noreply@paperclip.ing>
Paperclip