feat：完善项目信息

app/common/model/bill_instance.go

@@ -1,11 +1,37 @@
 package model
 
+// BillInstance 账单信息数据模型
 type BillInstance struct {
 	Model
+	BillInstanceBasic
 	ModelDeleted
 	ModelAt
 }
 
+// BillInstanceBasic 账单基本信息
+type BillInstanceBasic struct {
+	OrderNo string             `gorm:"column:order_no;type:varchar(30);default:'';comment:订单号" json:"order_no"`
+	Kind    string             `gorm:"column:kind;type:varchar(20);default:'';comment:账单类型" json:"kind"`
+	Amount  float64            `gorm:"column:amount;type:decimal(10,2);default:0;comment:账单金额" json:"amount"`
+	Number  float64            `gorm:"column:number;type:decimal(10,2);default:0;comment:账单数量" json:"number"`
+	Status  BillInstanceStatus `gorm:"column:status;type:tinyint(1);default:0;comment:账单状态" json:"status"`
+	Remark  string             `gorm:"column:remark;type:varchar(255);default:'';comment:账单备注" json:"remark"`
+}
+
+// BillInstanceStatus 账单状态
+type BillInstanceStatus int
+
+const (
+	// BillInstanceStatusForInit 初始化
+	BillInstanceStatusForInit BillInstanceStatus = iota
+	// BillInstanceStatusForApply 申请中
+	BillInstanceStatusForApply
+	// BillInstanceStatusForProcessing 处理中
+	BillInstanceStatusForProcessing
+	// BillInstanceStatusForProcessed 已处理
+	BillInstanceStatusForProcessed
+)
+
 func (m *BillInstance) TableName() string {
 	return "bill_instance"
 }