v1.2.0

• Updated to Factur-X 1.09 / ZUGFeRD 2.5 (spec dated 2026-06-10). Factur-X
  1.09 keeps the same UN/CEFACT CII D22B syntax, namespaces, and profile URNs
  (urn:factur-x.eu:1p0:*) as 1.08, so this is a backward-compatible refresh:
  XML produced by previous versions remains valid, and no input/output changes
  are required.

  • Bundled XSD schemas under schema/ swapped to the official 1.09 set
    (filenames normalized to the repo convention, internal schemaLocation
    references rewritten to match). For MINIMUM / BASIC WL / BASIC / EN 16931 the
    XSDs are content-identical to 1.08; the EXTENDED XSD gains only optional
    additions (debited-account name, financial adjustment / charges on behalf of
    a third party, an optional listID attribute on the allowance/charge reason
    code).
  • Reference .sch (Schematron) and _codedb.xml files updated to the 1.09
    code lists and CEN validation rules (effective 2026-05-15). These are not
    shipped in the npm package and not used at runtime — this library performs
    XSD validation only.
  • Documentation and code comments updated from "1.08 / 2.4" to "1.09 / 2.5".

• New optional EXTENDED-profile input fields for selected Factur-X 1.09
  business terms (all additive, only emitted at Profile.EXTENDED):

  • PaymentInput.debtorAccountName (BT-216) and PaymentInput.debtorBic
    (BT-215) — debited-account name and its payment service provider BIC.
  • AllowanceChargeInput.exemptionReason / exemptionReasonCode
    (BT-173–176) — VAT exemption reason/code on document-level allowances and
    charges.
  • FacturXInvoiceInput.financialAdjustments (BG-34, new
    FinancialAdjustmentInput with reason BT-180 + amount BT-179) —
    charges collected on behalf of a third party.
  • InvoiceLineInput.manufacturer (BG-X-94) — line-level product manufacturer
    party (ram:ManufacturerTradeParty).
  • Remaining 1.09 EXTENDED terms (e.g. document-level non-VAT tax codes,
    logistic-service-charge exemption reasons) are still not emitted and can be
    added later without breaking changes.

• Fixed: ram:FormattedIssueDateTime now emits a qdt:DateTimeString child
  instead of udt:DateTimeString. It is typed as qdt:FormattedDateTimeType in
  the CII XSD, so the previous udt: prefix failed XSD/Schematron validation for
  every credit note or cancellation invoice referencing a dated preceding
  invoice (#5).

• Fixed: XSD validation no longer exhausts libxml2's fixed-size input-callback
  table. validateXsd now clears the table on each call, so validating many
  documents in one process no longer causes spurious failures once ~15
  validations have run.