WhatsApp bridge images arrive as RoomMessageImage events with an empty
body field, so the previous .jpg/.jpeg extension check silently rejected
all of them. Accept all RoomMessageImage events and fall back to
"image.jpg" as filename when body is empty. File content is still
validated via magic bytes before upload.
Bot that monitors a Matrix room for PDF and JPEG files and uploads
them to Paperless-ngx. Supports E2E encrypted attachments via inline
AES keys, historical catchup on startup, exponential backoff retries
with a permanent give-up after max attempts, file format validation
via magic bytes, Uptime Kuma heartbeat monitoring, and email alerts
on errors via SMTP SSL.
