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/sync.go

@@ -6,6 +6,11 @@ import (
 	"github.com/gin-gonic/gin"
 )
 
+// statcenterRouter 数据中心拉取同步数据（协议与哔哩 /api/web/statcenter/sync 一致）
+func statcenterRouter(router *gin.RouterGroup) {
+	router.POST("/sync", statcenterctl.StatcenterSyncList)
+}
+
 // syncRouter 数据同步
 func syncRouter(router *gin.RouterGroup) {
 	routerGroup := router.Group("/router")