feat: 更新预算卡片组件，添加预算描述功能并优化状态标签显示

WebApi/Controllers/Dto/BudgetDto.cs

@@ -15,11 +15,17 @@ public class BudgetDto
     public DateTime? PeriodStart { get; set; }
     public DateTime? PeriodEnd { get; set; }
 
-    public static BudgetDto FromEntity(BudgetRecord entity, decimal currentAmount = 0, DateTime? referenceDate = null)
+    public string Description { get; set; } = string.Empty;
+
+    public static BudgetDto FromEntity(
+        BudgetRecord entity,
+        decimal currentAmount = 0,
+        DateTime? referenceDate = null,
+        string description = "")
     {
         var date = referenceDate ?? DateTime.Now;
         var (start, end) = BudgetService.GetPeriodRange(entity.StartDate, entity.Type, date);
-        
+
         return new BudgetDto
         {
             Id = entity.Id,
@@ -28,8 +34,8 @@ public class BudgetDto
             Limit = entity.Limit,
             Current = currentAmount,
             Category = entity.Category,
-            SelectedCategories = string.IsNullOrEmpty(entity.SelectedCategories) 
-                ? Array.Empty<string>() 
+            SelectedCategories = string.IsNullOrEmpty(entity.SelectedCategories)
+                ? Array.Empty<string>()
                 : entity.SelectedCategories.Split(','),
             IsStopped = entity.IsStopped,
             StartDate = entity.StartDate.ToString("yyyy-MM-dd"),
@@ -40,7 +46,8 @@ public class BudgetDto
                 _ => $"{start:yyyy-MM-dd} ~ {end:yyyy-MM-dd}"
             },
             PeriodStart = start,
-            PeriodEnd = end
+            PeriodEnd = end,
+            Description = description
         };
     }
 }