{"service":"EMIL IMAP/SMTP Service","version":"2.4.0","endpoints":{"GET /health":"Health Check","GET /":"API-Übersicht","POST /imap/test":"IMAP-Verbindungstest (mit Credentials oder connection_id)","POST /imap/create-folders":"IMAP-Ordner anlegen","POST /imap/check-new":"Neue Mails prüfen (Polling)","POST /imap/search-since":"Backfill-Scan: INBOX nach Datum durchsuchen (read-only, nur Mails mit Anhang)","POST /imap/fetch-attachments":"Mail-Anhänge herunterladen","POST /imap/move-mail":"Mail verschieben","POST /smtp/test":"SMTP-Verbindungstest (mit Credentials oder connection_id)","POST /smtp/send":"E-Mail versenden mit Anhängen"}}