fix(i18n): numbers, units, dates and order in the UI language, and after a switch (E30 S3)

Every locale formatter takes the language as an argument. Under the React
Compiler a formatter that read the i18n singleton was memoized on its other
arguments, so a card kept "2 hr 4 min" after a switch to Hungarian; plexLang()
had the same flaw and left Plex queries in the old language. Components now
take the language from useTranslation, and the signature makes forgetting it
a type error.

- ratings, file sizes, stream stats: the language's decimal mark ("8,3")
- view and subscriber counts compact in the language ("1,2 E")
- seconds as the language's unit ("6 mp") in the sliders and the stats
- a person's birth and death dates as dates, not ISO strings
- A-Z lists by the shown name in the language's alphabet (compareText),
  the tag catalog re-sorted by its translated names
- lint local/locale-format (was date-format) also refuses Intl.NumberFormat
  outside lib/format.ts, localeCompare, and a component reading the language
  off the i18n singleton

frontend/src/components/AuditLog.tsx

@@ -13,12 +13,14 @@ import DataTable from "./ui/DataTable";
 import { LoadingState, StateMessage } from "./ui/QueryState";
 import { auditColumns } from "./auditColumns";
 import { notifyActionError } from "../lib/actionErrors";
+import { compareText } from "../lib/collate";
 
 // Admin-only audit trail: an append-only who/what/when log of admin actions + scheduler run
 // summaries (never per-row). Read-only apart from Clear. Client-side sort/filter/paginate via
 // DataTable; the API returns the most recent window (capped) — the log stays small by design.
 export default function AuditLog() {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const qc = useQueryClient();
   const confirm = useConfirm();
   const q = useQuery({ queryKey: qk.adminAudit(), queryFn: () => api.adminAudit() });
@@ -26,9 +28,11 @@ export default function AuditLog() {
   const rows = useMemo(() => data?.items ?? [], [data]);
 
   const actionOptions = useMemo(() => {
-    const present = Array.from(new Set(rows.map((r) => r.action))).sort();
-    return present.map((a) => ({ value: a, label: t(`auditActions.${a}`, a) }));
-  }, [rows, t]);
+    // By what the reader sees — the named action, in their alphabet — not by the code.
+    return Array.from(new Set(rows.map((r) => r.action)))
+      .map((a) => ({ value: a, label: t(`auditActions.${a}`, a) }))
+      .sort((a, b) => compareText(a.label, b.label, lang));
+  }, [rows, t, lang]);
   const columns = useMemo(() => auditColumns(t, actionOptions), [t, actionOptions]);
 
   const clear = useMutation({