v0.9.1

Fixed

• The agent skill says hint on the error envelope is optional, with the example showing a real one; it showed hint unconditionally, and several BAD_ARGS paths omit it. The date and positive-integer checks behind --day, <day>, --from/--to, <days>, --days and --limit now carry a hint naming the argument and showing the format. (#167)
• The agent skill lists lastUpload in the report JSON shape; the command has always returned it, and a test now holds the documented keys to the real ones. (#166)