大量的代码格式化

Repository/TransactionRecordRepository.cs

@@ -57,6 +57,7 @@ public interface ITransactionRecordRepository : IBaseRepository<TransactionRecor
     /// </summary>
     /// <param name="year">年份</param>
     /// <param name="month">月份</param>
+    /// <param name="savingClassify"></param>
     /// <returns>每天的消费笔数和金额详情</returns>
     Task<Dictionary<string, (int count, decimal expense, decimal income, decimal saving)>> GetDailyStatisticsAsync(int year, int month, string? savingClassify = null);
 
@@ -65,6 +66,7 @@ public interface ITransactionRecordRepository : IBaseRepository<TransactionRecor
     /// </summary>
     /// <param name="startDate">开始日期</param>
     /// <param name="endDate">结束日期</param>
+    /// <param name="savingClassify"></param>
     /// <returns>每天的消费笔数和金额详情</returns>
     Task<Dictionary<string, (int count, decimal expense, decimal income, decimal saving)>> GetDailyStatisticsByRangeAsync(DateTime startDate, DateTime endDate, string? savingClassify = null);
 
@@ -149,7 +151,6 @@ public interface ITransactionRecordRepository : IBaseRepository<TransactionRecor
     /// <summary>
     /// 根据关键词查询交易记录（模糊匹配Reason字段）
     /// </summary>
-    /// <param name="keyword">关键词</param>
     /// <returns>匹配的交易记录列表</returns>
     Task<List<TransactionRecord>> QueryByWhereAsync(string sql);
 
@@ -471,7 +472,7 @@ public class TransactionRecordRepository(IFreeSql freeSql) : BaseRepository<Tran
                     Reason = group.Reason,
                     Count = group.Count,
                     SampleType = sample.Type,
-                    SampleClassify = sample.Classify ?? string.Empty,
+                    SampleClassify = sample.Classify,
                     TransactionIds = records.Select(r => r.Id).ToList(),
                     TotalAmount = Math.Abs(group.TotalAmount)
                 });
@@ -549,7 +550,7 @@ public class TransactionRecordRepository(IFreeSql freeSql) : BaseRepository<Tran
             .ToListAsync();
 
         var categoryGroups = records
-            .GroupBy(t => t.Classify ?? "未分类")
+            .GroupBy(t => t.Classify)
             .Select(g => new CategoryStatistics
             {
                 Classify = g.Key,