The dashboard now renders a progress bar for any running job — determinate
when counts are reported, an indeterminate "working" sliver otherwise — so a
scheduled run is as visible as a manual one (progress was never manual-only;
the wiring is shared, but only some jobs reported and the display gated on
counts).
Poll faster (1.5s) while any job runs, easing back to 4s when idle, derived
from the freshest data by react-query's functional refetchInterval. The
earlier React-state approach to this stalled the live updates (the row froze
on the first sampled value); useLiveQuery now accepts a function of the data.
Trilingual phase labels for the newly-reporting jobs.
New admin Scheduler page (left-nav entry) with a live, self-refreshing view of
job activity, queued work and quota. Polling is factored into a reusable
useLiveQuery hook (pauses when the tab is unfocused) that the notification bell
and future yt-dlp job queue will reuse instead of re-implementing.
