refactor: 删除冗余的 /api/v1/portfolio/{id}/transactions 路由

保留 query parameter 方式: /api/v1/portfolio/transactions?portfolioId=xxx

AssetManager.API/Controllers/PortfolioController.cs

@@ -300,38 +300,6 @@ public class PortfolioController : ControllerBase
         }
     }
 
-    /// <summary>
-    /// 获取交易记录
-    /// </summary>
-    [HttpGet("{id}/transactions")]
-    public async Task<ActionResult<ApiResponse<GetTransactionsResponse>>> GetTransactions(
-        string id,
-        [FromQuery] int limit = 20,
-        [FromQuery] int offset = 0)
-    {
-        var userId = GetCurrentUserId();
-        
-        var request = new GetTransactionsRequest
-        {
-            PortfolioId = id,
-            Limit = limit,
-            Offset = offset
-        };
-        
-        var transactions = await _portfolioFacade.GetTransactionsAsync(id, request, userId);
-        
-        return Ok(new ApiResponse<GetTransactionsResponse>
-        {
-            code = Models.StatusCodes.Success,
-            data = new GetTransactionsResponse
-            {
-                Items = transactions,
-                Total = transactions.Count
-            },
-            message = "success"
-        });
-    }
-
     /// <summary>
     /// 获取策略信号
     /// </summary>