feat(appointments): add support for doctors without schedules and display relevant notice

assets/admin/components/appointments/DoctorTabs.tsx

@@ -5,6 +5,8 @@
 export interface DoctorTab {
   uuid: string;
   name: string;
+  /** برچسب کوچکِ کنار نام — مثلاً «بدون ساعت کاری». */
+  note?: string;
 }
 
 export default function DoctorTabs({
@@ -38,6 +40,15 @@ export default function DoctorTabs({
             }}
           >
             {d.name}
+            {d.note && (
+              <span style={{
+                marginRight: 6, fontSize: 10.5, fontWeight: 500, padding: '2px 6px',
+                borderRadius: 'var(--r-pill)', background: 'var(--warning-bg)', color: 'var(--warning)',
+                verticalAlign: 'middle',
+              }}>
+                {d.note}
+              </span>
+            )}
             {active && (
               <span style={{
                 position: 'absolute', bottom: -1, left: 0, right: 0, height: 3,