sync: port tangguo_server upstream changes

Ported 7 commits (3a79d6a..3dcf693) from tangguo_server:
- 版本控制: comment out 2FA in admin.go
- 支付和广告调试: pay/ad refactor across appg/adser/rechargeser/pingctrl
- 对接统计: add bili_sync statistics endpoint
- 代码优化: ginUtil improvements
- 修改es/修改appID/代码调整: cumulative updates

Preserved hgmj-local differences:
- ES table prefix stays 91jd_ (not tangguo_)
- BillPlatformID stays 91短剧 (not 糖果短剧)
- admin googauth label stays @91短剧
- appg.go retains LouFengH5/DataBuriedPoint fields
- rechargeser.go retains reportser event reporting

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

app/appg/appg.go

@@ -177,6 +177,7 @@ type GlobalConfig struct {
 		LouFengH5        string   `json:"louFengH5"`       // 楼凤H5(金主特制)
 		DataBuriedPoint  string   `json:"dataBuriedPoint"` // 数据埋点
 		ProductUrl       string   `json:"productUrl"`      // 产品中心
+		VersionUrl       string   `json:"versionUrl"`      // 版本/广告中心地址
 		//Active2023      string   `json:"active2023"`      // 2023新春抽奖地址
 		NavigateUrl               string `json:"navigateUrl"`               // 导航站地址
 		HlH5Url                   string `json:"hlH5Url"`                   // 黑料h5url