OpenCode Go never had a usage source, so the provider list, its colours,
label, window lengths, default position and settings fields go. With it
goes the live/non-live split it introduced: every provider is now live,
and toggling still keeps at least one enabled. Saved settings that carry
the old OpenCode Go keys still load; the keys are dropped on next save.
A stored session window whose reset time has passed, or whose reset time
the provider moved forward by more than a minute, counts as replaced, so
usage in the new window climbs from zero. Small reset-time jitter within
one window still does not re-alert, and the cooldown is unchanged.
Poll results, threshold crossings and the alert cooldown now return
values instead of calling the tray, so they run under unit tests. The
bubble and panel payloads carry every display string and colour from
Rust, and the context menu is a plain tree with string ids that parse
back into commands. The update-check schedule and countdown delay are
plain functions of the stored times.