OptionalBaseFirst reconnect delay; doubles per consecutive attempt up to MaxBackoffMs. Default 1000.
OptionalMaxCeiling of the reconnect delay. Default 15000.
OptionalMaxConsecutive failed/short-lived subscriptions tolerated before the hub gives up. Default 6.
OptionalStableA subscription that lived at least this long counts as healthy and resets the attempt counter. Default 30000.
Tuning for RealtimeSessionEventHub's reconnect loop.