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>

web/router/base.go

@@ -189,4 +189,9 @@ func registerRouter(router *gin.Engine) {
 	{
 		syncRouter(syncDataRouter)
 	}
+	//数据中心同步接口，不走后台登录鉴权
+	statcenterGroup := router.Group("/api/web/statcenter")
+	{
+		statcenterRouter(statcenterGroup)
+	}
 }