fix: version 4.8.1 -- Agenda medica abre en vista Mes como el Calendario

Barra igual a la del Calendario (Hoy, anterior/siguiente, mes y ano; vista a la
derecha), vista Mes por defecto y aviso cuando no hay medicos configurados (antes
la vista Dia quedaba vacia).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

frontend/src/pages/AgendaMedica/AgendaMedicaPage.jsx

@@ -100,6 +100,7 @@ const readStored = (key, fallback) => {
 export default function AgendaMedicaPage() {
   const {
     t,
+    lang,
     openDialog,
     pushToast
   } = useUi();
@@ -113,7 +114,7 @@ export default function AgendaMedicaPage() {
     [types, setTypes] = useState([]),
     [allTypes, setAllTypes] = useState([]);
   const [tab, setTab] = useState('agenda'),
-    [view, setView] = useState(() => { const v = readStored('plc_clinic_view', 'day'); return ['day', 'week', 'month', 'list'].includes(v) ? v : 'day'; }),
+    [view, setView] = useState(() => { const v = readStored('plc_clinic_view_v2', 'month'); return ['day', 'week', 'month', 'list'].includes(v) ? v : 'month'; }),
     [day, setDay] = useState(today);
   const [doctorFilter, setDoctorFilter] = useState(() => {
     const value = readStored('plc_clinic_doctors', []);
@@ -239,7 +240,7 @@ export default function AgendaMedicaPage() {
   }, [me?.user_id, period.from, period.to]);
   useEffect(() => {
     try {
-      localStorage.setItem('plc_clinic_view', JSON.stringify(view));
+      localStorage.setItem('plc_clinic_view_v2', JSON.stringify(view));
     } catch {}
   }, [view]);
   useEffect(() => {
@@ -429,6 +430,13 @@ export default function AgendaMedicaPage() {
       actions
     });
   }
+  const periodTitle = (() => {
+    const d = new Date(`${day}T12:00:00`);
+    if (view === 'month' || view === 'list') return d.toLocaleDateString(lang, { month: 'long', year: 'numeric' });
+    if (view === 'day') return d.toLocaleDateString(lang, { weekday: 'long', day: 'numeric', month: 'long', year: 'numeric' });
+    const a = new Date(`${period.from.slice(0, 10)}T12:00:00`), b = new Date(`${move(period.to.slice(0, 10), -1)}T12:00:00`);
+    return `${a.toLocaleDateString(lang, { day: 'numeric', month: 'short' })} – ${b.toLocaleDateString(lang, { day: 'numeric', month: 'short', year: 'numeric' })}`;
+  })();
   const doctorColor = id => doctors.find(d => d.id === id)?.color || 'rgb(var(--accent))';
   const doctorShort = id => (doctors.find(d => d.id === id)?.name || '').split(' ').slice(0, 2).join(' ');
   const weekLabels = [t('calendar_mon'), t('calendar_tue'), t('calendar_wed'), t('calendar_thu'), t('calendar_fri'), t('calendar_sat'), t('calendar_sun')];
@@ -475,7 +483,7 @@ export default function AgendaMedicaPage() {
         const current = popup ? draft : tab === 'config' ? [staffDraft, typeDraft, scheduleDraft].find(x => x.isDirty) : null;
         void guardedClose(current, () => setTab(key));
       }} />
-  {tab === 'agenda' && <><div className="clinic-controls"><Button icon={ChevronLeft} onClick={() => setDay(step(-1))}>{t('calendar_previous')}</Button><DatePicker value={day} onChange={setDay} label={t('calendar_date')} /><Button icon={ChevronRight} onClick={() => setDay(step(1))}>{t('calendar_next')}</Button><ComboBox value={view} onChange={setView} options={['day', 'week', 'month', 'list'].map(x => ({
+  {tab === 'agenda' && <><div className="toolbar clinic-toolbar"><div className="toolbar-left"><Button onClick={() => setDay(today())}>{t('calendar_today')}</Button><Button icon={ChevronLeft} onClick={() => setDay(step(-1))} aria-label={t('calendar_previous')} /><Button icon={ChevronRight} onClick={() => setDay(step(1))} aria-label={t('calendar_next')} /><strong className="clinic-period">{periodTitle}</strong></div><div className="toolbar-left clinic-controls"><ComboBox value={view} onChange={setView} options={['month', 'week', 'day', 'list'].map(x => ({
           value: x,
           label: t(`clinic_view_${x}`)
         }))} /><CheckListDropdown label={t('clinic_doctors')} options={doctors.map(d => ({
@@ -484,7 +492,8 @@ export default function AgendaMedicaPage() {
         }))} values={doctorFilter} onChange={setDoctorFilter} /><CheckListDropdown label={t('clinic_status')} options={['scheduled', 'confirmed', 'attended', 'no_show'].map(x => ({
           value: x,
           label: t(`clinic_status_${x}`)
-        }))} values={statusFilter} onChange={setStatusFilter} /></div>
+        }))} values={statusFilter} onChange={setStatusFilter} /><DatePicker value={day} onChange={setDay} label={t('calendar_date')} /></div></div>
+  {me && doctors.length === 0 && <InfoBar tone="warning">{isAdmin ? t('clinic_no_doctors_admin') : t('clinic_no_doctors')}</InfoBar>}
   {(view === 'week' || view === 'month') && <div className="clinic-legend">{selectedDoctors.map(d => <span key={d.id}><span className="clinic-swatch" style={{ background: d.color || 'rgb(var(--accent))' }} />{d.name}</span>)}<span><span className="clinic-swatch block" />{t('clinic_blocks')}</span></div>}
   {view === 'day' ? <div className="clinic-day-grid">{selectedDoctors.map(d => <div className="clinic-doctor" key={d.id}><h3 style={{
             borderTop: `3px solid ${d.color || 'rgb(var(--accent))'}`