feat: 添加分类名称更新功能，支持在交易记录中同步更新分类名称

Repository/TransactionRecordRepository.cs

@@ -178,6 +178,15 @@ public interface ITransactionRecordRepository : IBaseRepository<TransactionRecor
     /// <param name="currentType">当前交易类型</param>
     /// <returns>候选交易列表</returns>
     Task<List<TransactionRecord>> GetCandidatesForOffsetAsync(long currentId, decimal amount, TransactionType currentType);
+
+    /// <summary>
+    /// 更新分类名称
+    /// </summary>
+    /// <param name="oldName">旧分类名称</param>
+    /// <param name="newName">新分类名称</param>
+    /// <param name="type">交易类型</param>
+    /// <returns>影响行数</returns>
+    Task<int> UpdateCategoryNameAsync(string oldName, string newName, TransactionType type);
 }
 
 public class TransactionRecordRepository(IFreeSql freeSql) : BaseRepository<TransactionRecord>(freeSql), ITransactionRecordRepository
@@ -661,6 +670,14 @@ public class TransactionRecordRepository(IFreeSql freeSql) : BaseRepository<Tran
             
         return list.OrderBy(t => Math.Abs(Math.Abs(t.Amount) - absAmount)).ToList();
     }
+
+    public async Task<int> UpdateCategoryNameAsync(string oldName, string newName, TransactionType type)
+    {
+        return await FreeSql.Update<TransactionRecord>()
+            .Set(a => a.Classify, newName)
+            .Where(a => a.Classify == oldName && a.Type == type)
+            .ExecuteAffrowsAsync();
+    }
 }
 
 /// <summary>