新增自定义数据库映射类型 LocalDateTime，完善套餐查询接口

cmd/gen/main.go

@@ -27,7 +27,11 @@ func main() {
 	})
 	g.UseDB(db)
 
-	models := g.GenerateAllTable()
+	models := g.GenerateAllTable(
+		gen.FieldType("created_at", "common.LocalDateTime"),
+		gen.FieldType("updated_at", "common.LocalDateTime"),
+		gen.FieldType("deleted_at", "common.LocalDateTime"),
+	)
 	g.ApplyBasic(models...)
 
 	modelChannel := g.GenerateModel("channel",