Optional refund/dispute handler for subscription sellers who revoke access when a charge is reversed. When a Stripe charge is fully refunded (charge.refunded) or disputed (charge.dispute.created), it re-reads provider truth for the customer id and closes that customer's access on the bound door with a supported close reason (refunded / dispute). Whether the close is immediate or enters a grace window is the seller's own status policy (Settings -> Seller), not this pack. It rides the bounded Stripe for Sellers surface, never the full API front door, and takes no payment authority: every customer id is a fresh provider read, never the webhook payload. This is one of two install variants — install the flag-only pack instead if you adjudicate refunds and disputes case by case rather than revoking automatically.