fix: dashboard counters refresh after status changes

When a booking status is changed, confirmed, or deleted in any tab,
the dashboard summary cards re-fetch to show updated counts. Previously
the dashboard was stale until page reload.

src/app/admin/bookings/GenericBookingsList.tsx

@@ -14,6 +14,7 @@ interface GenericBookingsListProps<T extends BaseBooking> {
   endpoint: string;
   filter: BookingFilter;
   onItemsChange: (fn: (prev: T[]) => T[]) => void;
+  onDataChange?: () => void;
   groups?: BookingGroup<T>[];
   renderExtra?: (item: T) => React.ReactNode;
   onConfirm?: (id: number) => void;
@@ -24,6 +25,7 @@ export function GenericBookingsList<T extends BaseBooking>({
   endpoint,
   filter,
   onItemsChange,
+  onDataChange,
   groups,
   renderExtra,
   onConfirm,
@@ -47,6 +49,7 @@ export function GenericBookingsList<T extends BaseBooking>({
         body: JSON.stringify({ action: "set-status", id, status }),
       });
       if (!res.ok) throw new Error();
+      onDataChange?.();
     } catch {
       if (prevStatus) onItemsChange((list) => list.map((b) => b.id === id ? { ...b, status: prevStatus } : b));
       showError("Не удалось обновить статус");
@@ -58,6 +61,7 @@ export function GenericBookingsList<T extends BaseBooking>({
       const res = await adminFetch(`${endpoint}?id=${id}`, { method: "DELETE" });
       if (!res.ok) throw new Error();
       onItemsChange((list) => list.filter((b) => b.id !== id));
+      onDataChange?.();
     } catch {
       showError("Не удалось удалить запись");
     }