refactor: 移除 calculateDailyNav 接口

前端暂不需要，后续有需求再加

AssetManager.API/Controllers/PortfolioController.cs

@@ -269,35 +269,6 @@ public class PortfolioController : ControllerBase
         }
     }
 
-    /// <summary>
-    /// 计算投资组合当日净值
-    /// </summary>
-    [HttpPost("{id}/nav-history/calculate")]
-    public async Task<ActionResult<ApiResponse<object>>> CalculateDailyNav(string id)
-    {
-        var userId = GetCurrentUserId();
-        
-        try
-        {
-            var success = await _portfolioFacade.CalculateDailyNavAsync(id);
-            return Ok(new ApiResponse<object>
-            {
-                code = Models.StatusCodes.Success,
-                data = new { portfolioId = id, calculated = success },
-                message = success ? "净值计算成功" : "净值计算失败"
-            });
-        }
-        catch (Exception ex)
-        {
-            return BadRequest(new ApiResponse<object>
-            {
-                code = Models.StatusCodes.BadRequest,
-                data = null,
-                message = ex.Message
-            });
-        }
-    }
-
     /// <summary>
     /// 创建交易（买入/卖出）
     /// </summary>

AssetManager.Services/IPortfolioFacade.cs

@@ -61,9 +61,4 @@ public interface IPortfolioFacade
     /// 获取用户总资产
     /// </summary>
     Task<TotalAssetsResponse> GetTotalAssetsAsync(string userId);
-    
-    /// <summary>
-    /// 计算投资组合当日净值
-    /// </summary>
-    Task<bool> CalculateDailyNavAsync(string portfolioId);
 }

AssetManager.Services/PortfolioFacade.cs

@@ -195,13 +195,4 @@ public class PortfolioFacade : IPortfolioFacade
         _logger.LogInformation("获取用户总资产: {UserId}", userId);
         return await _portfolioService.GetTotalAssetsAsync(userId);
     }
-
-    /// <summary>
-    /// 计算投资组合当日净值
-    /// </summary>
-    public async Task<bool> CalculateDailyNavAsync(string portfolioId)
-    {
-        _logger.LogInformation("计算投资组合当日净值: {PortfolioId}", portfolioId);
-        return await _navService.CalculateAndSaveDailyNavAsync(portfolioId);
-    }
 }