新增定时任务封装以及配置自动清理数据库功能

新增
- server/config/timer.go
- server/initialize/timer.go
- server/utils/db_automation.go
- server/utils/timer/timed_task.go
修改
- server/config.yaml
- server/config/config/go
- server/global/global.go
- server/main.go

server/config/timer.go

@@ -0,0 +1,13 @@
+package config
+
+type Timer struct {
+	Start  bool     `mapstructure:"start" json:"start" yaml:"start"`
+	Spec   string   `mapstructure:"spec" json:"spec" yaml:"spec"`
+	Detail []Detail `mapstructure:"detail" json:"detail" yaml:"detail"`
+}
+
+type Detail struct {
+	TableName    string `mapstructure:"tableName" json:"tableName" yaml:"tableName"`
+	CompareField string `mapstructure:"compareField" json:"compareField" yaml:"compareField"`
+	Interval     string `mapstructure:"interval" json:"interval" yaml:"interval"`
+}