Prefix prepended to each file’s relative path in the deployment (e.g. “run/”).
filter?
(relPath) => boolean
Keep only files whose POSIX-relative path passes; everything uploads when omitted, dotfiles included — and the server refuses dot-prefixed segments (.git, .venv, .DS_Store, .env) with a 400, so skip those here.
onFileUploaded?
(destPath) => void
Called after each file lands, with its destination path.
