This fixes the issue where:
- December 24 was not recognized as a special day
- December 23 was not marked as Vortag (pre-holiday day)
By adding Heiligabend to the holiday list:
- Dec 24 is now Ist_FEIERTAG=TRUE (treated as WE-Tag)
- Dec 23 is now Ist_VORTAG=TRUE (day before holiday, also WE-Tag)
Co-authored-by: Kenearos <86194771+Kenearos@users.noreply.github.com>
- Neue vereinfachte Vorlage ohne komplexe Excel-Formeln
- Automatische Anteil-Berechnung (1 MA = 1.0, 2 MA = je 0.5)
- Python-basierte Vergütungsberechnung nach NRW-Regeln
- Datumsformat als Text für bessere Kompatibilität
- Testdaten-Generator mit Splits
