feat(meetings): center clock, fullscreen toggle, quick-note tab (#583)

- Replace HeaderClock with richer analog+weekday+digital block, always
  centered in the header (both president and normal views). Drop the
  PresidentClockBar render from the toolbar; the dead helper is left
  in place but unused.
- Lift fullscreen state to ExecutiveMeetingsPageInner with
  sessionStorage persistence, Esc handler, auto-exit when the user
  leaves the schedule tab. Hide the page header when active and show a
  floating "Exit fullscreen" pill. New Maximize/Minimize toggle in the
  schedule toolbar portal.
- Add MeetingsQuickNoteTab: a fixed amber vertical pill pinned to the
  left edge of the schedule view that navigates to /notes?new=1.
- notes.tsx: detect ?new=1, switch to the Active tab, bump a numeric
  openTrigger that the top Composer reacts to by opening + focusing
  the textarea, then scrub the query param so navigation doesn't
  re-trigger.
- i18n: add executiveMeetings.fullscreen.{enter,exit} and
  executiveMeetings.quickNote.label in ar.json and en.json.

tsc clean. Push to Gitea still blocked by Tailscale; user to retry.

artifacts/tx-os/src/pages/executive-meetings.tsx

@@ -783,34 +783,6 @@ export default function ExecutiveMeetingsPage() {
   );
 }
 
-function PresidentClockBar({ date, lang }: { date: string; lang: "ar" | "en" }) {
-  const [now, setNow] = useState<Date>(() => new Date());
-  useEffect(() => {
-    const id = window.setInterval(() => setNow(new Date()), 1000);
-    return () => window.clearInterval(id);
-  }, []);
-  return (
-    <div
-      className="flex items-center gap-2 sm:gap-3 ps-2 sm:ps-3 ms-1 border-s border-gray-200"
-      data-testid="em-president-clock-bar"
-    >
-      <AnalogClock size={40} />
-      <div className="leading-tight">
-        <div className="flex items-center gap-2 text-[#0B1E3F] font-semibold text-sm sm:text-base">
-          <span data-testid="em-president-weekday">{formatWeekday(date, lang, "long")}</span>
-          <span className="text-muted-foreground/60">·</span>
-          <span className="tabular-nums" data-testid="em-president-digital-time">
-            {formatTimeI18n(now, lang, { hour: "2-digit", minute: "2-digit", second: "2-digit", hour12: true })}
-          </span>
-        </div>
-        <div className="text-xs sm:text-sm text-muted-foreground tabular-nums" data-testid="em-president-date">
-          {formatDate(date, lang)}
-        </div>
-      </div>
-    </div>
-  );
-}
-
 function HeaderClock({ lang, date }: { lang: "ar" | "en"; date: string }) {
   const [now, setNow] = useState<Date>(() => new Date());
   useEffect(() => {
@@ -842,11 +814,9 @@ function HeaderClock({ lang, date }: { lang: "ar" | "en"; date: string }) {
 
 function MeetingsQuickNoteTab({
   lang,
-  isRtl,
   onClick,
 }: {
   lang: "ar" | "en";
-  isRtl: boolean;
   onClick: () => void;
 }) {
   const { t } = useTranslation();
@@ -1038,7 +1008,6 @@ function ExecutiveMeetingsPageInner() {
       {section === "schedule" && !isFullscreen && !bulkToolbarActive && (
         <MeetingsQuickNoteTab
           lang={lang}
-          isRtl={isRtl}
           onClick={() => setLocation("/notes?new=1")}
         />
       )}