feat：完善项目

app/common/model/work_instance.go

@@ -0,0 +1,16 @@
+package model
+
+type WorkInstance struct {
+	Model
+	Title string `json:"title"`
+	ModelDeleted
+	ModelAt
+}
+
+func (m *WorkInstance) TableName() string {
+	return "manage_instance"
+}
+
+func NewWorkInstance() *WorkInstance {
+	return &WorkInstance{}
+}