feat(scheduler): admin run-now/run-all triggers + live progress + completion notices

Add per-job "Run now" buttons and a "Start all now" button to the admin Scheduler
dashboard (admin-gated endpoints). Triggers run the job in a background thread
independent of its interval, refusing a concurrent run (409). While running, the
long jobs (maintenance, enrich, backfill, shorts) report live progress through a
decoupled contextvar sink, shown as a progress bar on the job row via the existing
4s poll. A manually-triggered run posts a completion notification to the triggering
admin's inbox (scheduled runs stay silent to avoid spam); the inbox renders the
"scheduler" type trilingually from type+data. While here, give the maintenance job
its missing dashboard label/description in all three languages.

frontend/src/components/Scheduler.tsx

@@ -73,14 +73,45 @@ function StatusLegend() {
   );
 }
 
+function JobProgress({ p }: { p: NonNullable<SchedulerJob["progress"]> }) {
+  const { t } = useTranslation();
+  const phase = p.phase ? t(`scheduler.phase.${p.phase}`, p.phase) : null;
+  const pct =
+    p.total && p.total > 0 ? Math.min(100, Math.round((p.current / p.total) * 100)) : null;
+  return (
+    <div className="mt-1.5">
+      <div className="flex items-center justify-between text-[11px] text-muted mb-0.5">
+        <span className="truncate">{phase}</span>
+        <span className="tabular-nums shrink-0">
+          {p.total != null
+            ? `${p.current.toLocaleString()} / ${p.total.toLocaleString()}`
+            : p.current.toLocaleString()}
+        </span>
+      </div>
+      <div className="h-1.5 rounded-full bg-border overflow-hidden">
+        {pct != null ? (
+          <div className="h-full rounded-full bg-accent transition-[width]" style={{ width: `${pct}%` }} />
+        ) : (
+          // Indeterminate: total unknown, so a slim moving sliver instead of a fill.
+          <div className="h-full w-1/3 rounded-full bg-accent animate-pulse" />
+        )}
+      </div>
+    </div>
+  );
+}
+
 function JobRow({
   job,
   onSave,
   saving,
+  onRun,
+  runDisabled,
 }: {
   job: SchedulerJob;
   onSave: (minutes: number) => void;
   saving: boolean;
+  onRun: () => void;
+  runDisabled: boolean;
 }) {
   const { t } = useTranslation();
   const [editing, setEditing] = useState(false);
@@ -153,6 +184,7 @@ function JobRow({
             <span> · {job.last_result}</span>
           ) : null}
         </div>
+        {job.running && job.progress && <JobProgress p={job.progress} />}
       </div>
       <div className="shrink-0 text-right text-[11px] text-muted tabular-nums">
         {job.running ? (
@@ -166,6 +198,16 @@ function JobRow({
           "—"
         )}
       </div>
+      <Tooltip hint={t("scheduler.runNow")}>
+        <button
+          onClick={onRun}
+          disabled={job.running || runDisabled}
+          aria-label={t("scheduler.runNow")}
+          className="shrink-0 p-1.5 rounded-lg text-muted hover:text-accent hover:bg-card transition disabled:opacity-30 disabled:hover:text-muted disabled:hover:bg-transparent"
+        >
+          <Play className="w-4 h-4" />
+        </button>
+      </Tooltip>
     </div>
   );
 }
@@ -227,6 +269,23 @@ export default function Scheduler() {
     onError: () => notify({ level: "error", message: t("scheduler.intervalFailed") }),
   });
 
+  // Manual "run now" triggers. The wrapper runs in a background thread server-side; the
+  // live poll surfaces the "running" state within a tick, so we just nudge a refetch.
+  const runMut = useMutation({
+    mutationFn: (jobId: string) => api.runSchedulerJob(jobId),
+    onSuccess: (_d, jobId) => {
+      notify({ level: "success", message: t("scheduler.triggered", { job: t(`scheduler.jobs.${jobId}`, jobId) }) });
+      qc.invalidateQueries({ queryKey: ["scheduler"] });
+    },
+  });
+  const runAllMut = useMutation({
+    mutationFn: () => api.runAllSchedulerJobs(),
+    onSuccess: (res) => {
+      notify({ level: "success", message: t("scheduler.triggeredAll", { count: res.started.length }) });
+      qc.invalidateQueries({ queryKey: ["scheduler"] });
+    },
+  });
+
   if (q.isLoading && !data)
     return <div className="p-8 text-muted">{t("scheduler.loading")}</div>;
   if (!data)
@@ -260,6 +319,16 @@ export default function Scheduler() {
           </div>
         </div>
         <div className="flex-1" />
+        <Tooltip hint={data.paused ? t("scheduler.runAllPausedHint") : t("scheduler.runAllHint")}>
+          <button
+            onClick={() => runAllMut.mutate()}
+            disabled={runAllMut.isPending || data.paused}
+            className="glass-card glass-hover flex items-center gap-2 px-3 py-2 rounded-xl text-sm disabled:opacity-50 transition"
+          >
+            <Play className="w-4 h-4" />
+            {t("scheduler.runAll")}
+          </button>
+        </Tooltip>
         <Tooltip hint={t("scheduler.pauseHint")}>
           <button
             onClick={() => pauseResume.mutate(data.paused)}
@@ -290,6 +359,8 @@ export default function Scheduler() {
               job={job}
               saving={intervalMut.isPending}
               onSave={(minutes) => intervalMut.mutate({ jobId: job.id, minutes })}
+              onRun={() => runMut.mutate(job.id)}
+              runDisabled={data.paused || runAllMut.isPending}
             />
           ))}
         </div>