feat(expense): 添加费用管理功能模块

- 添加出差信息

erp/expense/cost.go

@@ -32,6 +32,9 @@ type CostItem struct {
 	Amount         decimal.Decimal `json:"amount"`
 	DepartmentId   int64           `json:"departmentId"`
 	InvoiceSerial  string          `json:"invoiceSerial"`
+	TravelAt       *time.Time      `json:"travelAt"`
+	TravelLocation string          `json:"travelLocation"`
+	TravelReason   string          `json:"travelReason"`
 	CreatedAt      *time.Time      `json:"createdAt"`
 	UpdatedAt      *time.Time      `json:"updatedAt"`
 }
@@ -55,6 +58,9 @@ type ArgsCostAdd struct {
 	Amount         decimal.Decimal // 金额
 	DepartmentId   int64           // 部门
 	InvoiceSerial  string          // 发票编号
+	TravelAt       *time.Time      // 出差时间
+	TravelLocation string          // 出差地点
+	TravelReason   string          // 出差事由
 }
 
 type ReplyCostAdd struct {