v5.3.0

Added

• Edit the timeline from the dashboard. Click a bar or drag across the
  lanes to pick a range, then Label, Add entry or Delete; type
  in the sheet to change the times. Add time above the timeline adds
  time tock didn't see.
• Export in the week view saves the week report, the week's entries
  as CSV or JSON, or its hours by project: the same files tock report
  and tock export write. In the tock window a save sheet asks where each
  goes.
• tock summary without Claude prints the day's work blocks and says how
  to get a written summary, instead of stopping with an error.

Changed

• Time without a label is called Unlabelled everywhere; the dashboard's
  tables said Unclassified.
• tock export errors now name the option at fault, the same way the
  dashboard does.

Fixed

• Replacing a file from the dashboard's save sheet no longer deletes the
  old one before the new one is written, so a failed export keeps it. The
  toast says Saved only once the file is there, and nothing on Cancel.
• A slow save sheet can no longer cut a download short.
• An export range across a daylight saving change could cover a year and
  a day.