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/locales/ar.json

@@ -1173,7 +1173,7 @@
       "exit": "الخروج من ملء الشاشة"
     },
     "quickNote": {
-      "label": "اكتب ملاحظة"
+      "label": "اكتب ملاحظة…"
     },
     "noMeetings": "لا توجد اجتماعات في هذا اليوم",
     "virtual": "اتصال مرئي",

artifacts/tx-os/src/locales/en.json

@@ -1081,7 +1081,7 @@
       "exit": "Exit fullscreen"
     },
     "quickNote": {
-      "label": "Take a note"
+      "label": "Take a note…"
     },
     "noMeetings": "No meetings scheduled for this day",
     "virtual": "Virtual",

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

@@ -820,7 +820,7 @@ function MeetingsQuickNoteTab({
   onClick: () => void;
 }) {
   const { t } = useTranslation();
-  const label = t("executiveMeetings.quickNote.label", lang === "ar" ? "اكتب ملاحظة" : "Take a note");
+  const label = t("executiveMeetings.quickNote.label", lang === "ar" ? "اكتب ملاحظة…" : "Take a note…");
   // Tab sits on the page edge that is visually "left" in LTR and "right"
   // in RTL — but the spec calls for "left of meetings page", so we pin
   // to physical left in both directions. Hidden in print.
@@ -831,7 +831,7 @@ function MeetingsQuickNoteTab({
       aria-label={label}
       title={label}
       data-testid="em-quick-note-tab"
-      className="hidden md:flex fixed left-0 top-[40vh] z-30 flex-col items-center justify-center gap-2 w-7 py-3 rounded-r-lg bg-amber-200 hover:bg-amber-300 border border-amber-300 border-l-0 text-[#0B1E3F] shadow-sm transition-colors print:hidden"
+      className="flex fixed left-0 top-[40vh] z-30 flex-col items-center justify-center gap-2 w-7 py-3 rounded-r-lg bg-amber-200 hover:bg-amber-300 border border-amber-300 border-l-0 text-[#0B1E3F] shadow-sm transition-all duration-150 hover:translate-x-0.5 print:hidden"
       style={{ writingMode: "vertical-rl" as const }}
     >
       <Plus className="w-4 h-4 rotate-90" aria-hidden="true" />