feat: add Persian calendar support for week numbers and dates

src/CMSMicroservice.Application/CommissionCQ/Queries/GetAvailableWeeks/GetAvailableWeeksQueryHandler.cs

@@ -87,7 +87,16 @@ public class GetAvailableWeeksQueryHandler : IRequestHandler<GetAvailableWeeksQu
         var log = executionLogs.GetValueOrDefault(weekNumber);
         
         var isCalculated = pool != null && pool.IsCalculated;
-        var displayText = $"{weekNumber} ({startDate:yyyy/MM/dd} - {endDate:yyyy/MM/dd})";
+        
+        // تبدیل weekNumber به شمسی
+        var persianWeekNumber = ConvertWeekNumberToPersian(weekNumber, startDate);
+        
+        // تبدیل تاریخ به شمسی برای نمایش
+        var persianCalendar = new PersianCalendar();
+        var startDatePersian = $"{persianCalendar.GetYear(startDate):D4}/{persianCalendar.GetMonth(startDate):D2}/{persianCalendar.GetDayOfMonth(startDate):D2}";
+        var endDatePersian = $"{persianCalendar.GetYear(endDate):D4}/{persianCalendar.GetMonth(endDate):D2}/{persianCalendar.GetDayOfMonth(endDate):D2}";
+        
+        var displayText = $"{persianWeekNumber} ({startDatePersian} - {endDatePersian})";
         
         if (isCalculated)
         {
@@ -96,7 +105,7 @@ public class GetAvailableWeeksQueryHandler : IRequestHandler<GetAvailableWeeksQu
         
         return new WeekInfoDto
         {
-            WeekNumber = weekNumber,
+            WeekNumber = persianWeekNumber, // شمسی
             StartDate = startDate,
             EndDate = endDate,
             IsCalculated = isCalculated,
@@ -152,4 +161,33 @@ public class GetAvailableWeeksQueryHandler : IRequestHandler<GetAvailableWeeksQu
         
         return (startDate, endDate);
     }
+
+    private static string ConvertWeekNumberToPersian(string gregorianWeekNumber, DateTime weekStartDate)
+    {
+        // ورودی: "2025-W48"
+        var persianCalendar = new PersianCalendar();
+        var persianYear = persianCalendar.GetYear(weekStartDate);
+        
+        // محاسبه شماره هفته شمسی
+        var jan1Persian = persianCalendar.ToDateTime(persianYear, 1, 1, 0, 0, 0, 0);
+        
+        // پیدا کردن اولین شنبه سال شمسی
+        var jan1DayOfWeek = (int)jan1Persian.DayOfWeek;
+        var daysToFirstSaturday = jan1DayOfWeek == 6 ? 0 : (6 - jan1DayOfWeek + 7) % 7;
+        var firstSaturday = jan1Persian.AddDays(daysToFirstSaturday);
+        
+        // محاسبه شماره هفته
+        int weekNum;
+        if (weekStartDate < firstSaturday)
+        {
+            weekNum = 1;
+        }
+        else
+        {
+            var daysSinceFirstSaturday = (weekStartDate - firstSaturday).Days;
+            weekNum = (daysSinceFirstSaturday / 7) + 1;
+        }
+        
+        return $"{persianYear}-W{weekNum:D2}";
+    }
 }