bunny-billing

Invoice, payment, and credit-note handling in Bunny. Covers the invoice state machine (DRAFT, PREPARING, READY, NOT_DUE, DUE, UNPAID, PROCESSING_PAYMENT, PAID, VOIDED, FAILED, MERGED, QUEUED, CONSOLIDATED), the credit-note lifecycle (DRAFT → READY → APPLIED / PARTIALLY_APPLIED), how invoices are generated by the cron vs invoiceGenerateNextPeriod, the void-vs-credit-vs-refund decision, the Payment + PaymentApplication model with multi-invoice application (paymentApplyToInvoices, paymentApplyToAccount), crediting (invoiceCredit, invoiceAddCredit, creditNoteCreate / creditNoteIssue / creditNoteApplyToInvoices), refund via invoiceRefund, consolidation billing (invoiceMerge), tax retries (invoiceRetryTax, invoiceUpdateTaxes), invoice templates, and reconciliation against external accounting systems. Use when handling invoices, capturing payments, issuing refunds or credits, or reconciling Bunny against your books.