...})\.(\d{2})\.(\d{4})\b"),        # DD.MM.YYYY
    re.compile(r"\b(\d{4})/(\d{2})/(\d{2})\b"),          # YYYY/MM/DD
]

# Sprecher-Marker (eindeutig)
USER_MARKERS = [
    re.compile(r"^\s*(user|nutzer|ich)\s*[:>]\s*", re.IGNORECASE),
    re.compile(r"^\s*\[?msg[^\]]*\]\s*\|\|\|\|", re.IGNORECASE),  # Export-Format mit |||| (nicht automatisch User!)
]
ASSISTANT_MARKERS = [
    re.compile(r"^\s*(assista...