Date fix: previous regex matched payment-due date ("10 Tage nach Rechnungsdatum...
10.04.2026") instead of actual Rechnungsdatum. New approach anchors on the
invoice number line (DD/DDDDDDDDD/DDD) and takes the date on the next line,
which is always the actual Rechnungsdatum in DKV PDFs.
Exchange dedup: FindItem now filters IsRead=false (combined with sender filter
via <t:And>), so already-processed emails are skipped automatically.
After downloading attachments, UpdateItem marks the message as read
(using ItemId + ChangeKey from GetItem response), mirroring IMAP \Seen behavior.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
schalli
a44e40f101