feat(bookings): add cancellation reason column to bookings table

Enhanced the bookings page and admin event bookings tab by adding a new column for 'cancellationReason'. This column displays the reason for cancellations when applicable, improving the visibility of booking statuses. Additionally, removed the 'غایب' (no-show) insight stat from the event overview tab for a cleaner presentation of event insights.

app/(dashboard)/bookings/page.tsx

@@ -56,6 +56,13 @@ const columns: PaginationListColumnType[] = [
     type: 'select',
     filterItems: BOOKING_STATUS_FILTER_ITEMS,
   },
+  {
+    field: 'cancellationReason',
+    label: 'دلیل لغو',
+    filterable: false,
+    sortable: false,
+    type: 'text',
+  },
   {
     field: 'checkedInAt',
     label: 'چک‌این',
@@ -123,6 +130,18 @@ const BookingsPage = () => {
                 />
               )
             },
+            cancellationReason: (row, cellValue) => {
+              const reason = coerceToString(cellValue).trim()
+              const isCancelledLike = row.status === 'cancelled' || row.status === 'refunded'
+
+              if (!isCancelledLike || !reason) return '—'
+
+              return (
+                <span className="max-w-[220px] whitespace-pre-wrap break-words text-xs text-secondary-20">
+                  {reason}
+                </span>
+              )
+            },
             checkedInAt: (_row, cellValue) => formatPersianDate(cellValue),
             createdAt: (_row, cellValue) => formatPersianDate(cellValue),
             actions: (row) => {

features/events/detail/admin-event-detail/AdminEventBookingsTab.tsx

@@ -34,6 +34,7 @@ const bookingsColumns: PaginationListColumnType[] = [
   { field: 'bookingCode', label: 'کد رزرو', filterable: false, sortable: false, type: 'text' },
   { field: 'userId', label: 'مهمان', filterable: false, sortable: false, type: 'text' },
   { field: 'status', label: 'وضعیت', filterable: true, sortable: true, type: 'select', filterItems: BOOKING_STATUS_FILTER_ITEMS },
+  { field: 'cancellationReason', label: 'دلیل لغو', filterable: false, sortable: false, type: 'text' },
   { field: 'checkedInAt', label: 'چک‌این', filterable: false, sortable: false, type: 'date' },
   { field: 'createdAt', label: 'تاریخ ثبت', filterable: false, sortable: true, type: 'date' },
   { field: 'actions', label: 'عملیات' },
@@ -113,6 +114,18 @@ const AdminEventBookingsTab = ({ eventId, eventStatus, onCheckedIn }: AdminEvent
               />
             )
           },
+          cancellationReason: (row, cellValue) => {
+            const reason = coerceToString(cellValue).trim()
+            const isCancelledLike = row.status === 'cancelled' || row.status === 'refunded'
+
+            if (!isCancelledLike || !reason) return '—'
+
+            return (
+              <span className="max-w-[220px] whitespace-pre-wrap break-words text-xs text-secondary-20">
+                {reason}
+              </span>
+            )
+          },
           checkedInAt: (_row, cellValue) => formatPersianDate(cellValue),
           createdAt: (_row, cellValue) => formatPersianDate(cellValue),
           actions: (row) => {

features/events/detail/admin-event-detail/AdminEventOverviewTab.tsx

@@ -48,10 +48,6 @@ const AdminEventOverviewTab = ({ insights }: AdminEventOverviewTabProps) => {
           label="بازپرداخت‌شده"
           value={number(insights.registrations.refundedCount)}
         />
-        <InsightStat
-          label="غایب"
-          value={number(insights.registrations.noShowCount)}
-        />
         <InsightStat
           label="ظرفیت باقی‌مانده"
           value={number(insights.registrations.remainingCapacity)}