v0.5.3

Added

• An "internal use only" notice now appears in the footer of every
  page: the tool is for internal use and must not be shared outside the
  organization. This notice shows in the tool only — it is deliberately
  left off exported reports, maps, and KML files, which may form part of
  a licence file.

Changed

• The results-interpretation disclaimer now names a Qualified
  Professional alongside the regional hydrogeologist: results must be
  interpreted by, or in consultation with, a regional hydrogeologist or
  a Qualified Professional with expertise in hydrogeology. The updated
  wording appears in the tool and on every export (PDF, interactive map,
  KML).

• The hints under the pumping-parameter fields were tidied up —
  clearer, shorter wording under the pumping-rate, duration, and
  buffer-radius fields.

Fixed

• In Lat / Lon input mode, clicking Place without entering both
  values now shows a red "Enter both longitude and latitude." message
  right next to the button, instead of appearing to do nothing. (The
  message was previously shown below the map, where it was easy to
  miss.)