更新小程序和管理后台配置，将 API 地址切换为生产环境。新增撤回打款功能，允许用户在特定状态下撤回打款请求，并优化相关页面交互。更新文档以反映新的流程图，确保用户体验一致性。

soul-api/internal/router/router.go

@@ -77,6 +77,7 @@ func Setup(cfg *config.Config) *gin.Engine {
 			admin.DELETE("/referral", handler.AdminReferral)
 			admin.GET("/withdrawals", handler.AdminWithdrawalsList)
 			admin.PUT("/withdrawals", handler.AdminWithdrawalsAction)
+			admin.POST("/withdrawals/cancel", handler.AdminWithdrawalsCancel)
 			admin.POST("/withdrawals/sync", handler.AdminWithdrawalsSync)
 			admin.GET("/withdrawals/auto-approve", handler.AdminWithdrawalsAutoApproveGet)
 			admin.PUT("/withdrawals/auto-approve", handler.AdminWithdrawalsAutoApprovePut)