feat：完善项目信息

app/api/admin/model/user_identity.go

@@ -0,0 +1,11 @@
+package model
+
+import "SciencesServer/app/common/model"
+
+type UserIdentity struct {
+	*model.UserIdentity
+}
+
+func NewUserIdentity() *UserIdentity {
+	return &UserIdentity{model.NewUserIdentity()}
+}