Compile canonical names, aliases, stream kinds, documentation, and raw reservations into one immutable registry. Reject duplicate, undeclared, mismatched, or late handler registration before requests can be dispatched.
Add NetworkManager.subscribeDebug (notified for every emitEvent, before the
adapter check, so the debug stream sees events even with no adapter) and
ApiHandler.setObserver (fires after every handled action with
{action,params,response,ms}, success or failure). Both Set-based, return an
unsubscribe, and swallow subscriber throws so they never break dispatch.
OneBotInstance exposes subscribeDebugEvents / observeActions / invokeAction.
Foundation for the Wave A3 debug stream + action tester.
DrSmoothl