Offset Align 0.2.32

fix: one "today" everywhere, in the organisation's time zone

Evidence collected today could show as "-1 days old" east of UTC (in India
between midnight and 05:30): parts of the product took today's date from UTC
and parts from the browser.

• The server works out every calendar date in its own zone (TZ for Docker),
  and SQL gets the same date through a today() function.
• Evidence age is never below nought, and stale means older than 90 days on
  the golden thread, the evidence list and the reports alike.
• Screens fill in today's date from the computer's own calendar.
• Report footers show local time and the zone, not UTC.
• Tests run at 02:00 in India, when UTC is still on the day before.