Run as the current user instead of a dedicated system user, using
systemd user service in ~/.config/systemd/user/. This avoids needing
root for setup and keeps uv and the project in the user's home
directory. Rename service file to matrix-paperless-ingest.service.
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.
