bunny-quoting

Build quote flows in Bunny — the subscription billing platform. Covers the quote lifecycle state machine (DRAFT, IN_APPROVAL, APPROVED, SHARED, VIEWED, ACCEPTED, REJECTED, UNDONE), the Quote → QuoteChange → QuoteCharge three-level hierarchy, QuoteChangeKind (SUBSCRIBE, RENEW, UPDATE, UNSUBSCRIBE, ADJUSTMENT, DISCOUNT, QUANTITY_UPDATE, PRICE_UPDATE, …), the canonical create-change-apply flow, renewal/upgrade/add-on shortcuts (quoteSubscriptionRenew, quoteSubscriptionUpgrade, quoteSubscriptionAddon), coupon application (quoteChangeAddCoupon), the share/accept workflow (quoteMarkAsShared + quoteAccept), approval gating (quoteApprovalStart / quoteApprove), ramp deals (quoteChangeCreateRampUp) for stepped-quantity contracts, and the quoteApplyChanges output envelope ({ quote, subscriptions, invoice, errors }). Use when creating, modifying, or applying quotes; when building sales-assisted signup; or when orchestrating renewals and upgrades.