Completes the eRechnung output path: finalized invoices are emitted as a
ZUGFeRD/Factur-X EN 16931 hybrid (DATEV) or, when a Leitweg-ID is present, as
XRechnung 3.0 for B2G. Both are externally validated as ACCEPTED (0 errors) and
PDF/A-3B COMPLIANT against the ProcessWeb eInvoice service.
- ERechnungMapper: FdsInvoiceData -> EN 16931 model. Seller master data now from
Fuchs:ERechnung:Seller config (VAT id BT-31, Steuernummer BT-32, optional
Handelsregister BT-30, IBAN/BIC, contact). Adds payment terms BT-20/BT-9
(BR-CO-25), buyer VAT id, §13b reverse charge, and the service date/period
(BT-72 / BG-14) parsed from ProvisionPeriod (BR-DE-TMP-32). B2G -> XRechnung
profile with the required electronic addresses/contact.
- ERechnungValidator: client for POST /validatepdf (EN 16931 XML + PDF/A-3 in
one call). A pure "scenario not matched" with zero errors is not treated as a
hard failure; real errors optionally withhold the hybrid (FailOnError).
- ERechnungSettings: seller + validation config; wired in Program.cs; ServiceUrl
in appsettings.
- Online editor: structured German-only dialogs for the recipient address
(incl. Leitweg-ID) and the service date/period (single date or range).
- Bumps the eRechnungLib submodule to the CII rsm-namespace / PDF-A subtype fix.
Fuchs.Tests 514/514, eRechnungLib 97/97.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
