One Hour Forever

The Farming Session, rebuilt. Range circles that actually draw.

FARMING

There used to be a farming session and a gathering session, and you had to
pick one before you started. That was an artificial choice: you gather
while you farm, and the two sessions lost sight of each other.

There is now one Farming Session. Start it and it counts everything that
happens: nodes gathered, enemies killed, items looted, coin picked up.

- Your last session sits beside the one running, with bars on the same
  scale for gold, gold per hour, items, nodes and enemies. You can see
  straight away whether this hour is going better than the last one.
- A session survives a /reload, and a logout of under ten minutes. Longer
  than that and it ends, rather than quietly crediting you with time you
  were not playing.
- Share a summary to Say, Guild, Party or General chat, whichever you
  choose. It is never sent automatically and never without you picking
  where it goes.
- End Session sits on its own row, away from Start, so it cannot be hit by
  accident. There is no confirmation and none is needed.
- The floating session window is gone. The Farming tab is the only place a
  session lives now.
- The session history starts fresh. The old farming and gathering entries
  are a different shape, and mixing them would make every comparison lie,
  so they are kept but not compared against.

FIXES

- Range circles were not drawing on enemy nameplates at all. The code that
  places them did arithmetic on a nameplate's screen position, which the
  game refuses to hand over, and the error was being swallowed instead of
  recorded. Both are fixed: the circles draw, and an error like that is
  now logged rather than silently turning a feature off.
- /ohf rangetest threw an error when it tried to measure anything attached
  to a nameplate.
- Fixed an error when marking a moment for a recording.