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docs: correct admin-credentials help text (fixes #34)
One wording issue before accepting: the S3 / B2 / SFTP / local guidance is contradictory. It says to “leave this blank”, but the implementation skips both scheduled and manual prune whenever the…
docs: correct admin-credentials help text (fixes #34)
Admin-credentials help text is wrong: forget does not use admin creds, and blank does not fall back for prune