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ae74b9018a
* Introduce EventBroker and RequestBroker as decoupling helpers that represent reactive (event-driven) and proactive (request/response) patterns without tight coupling between modules * Address copilot observation. error log if failed listener call exception, handling listener overuse - run out of IDs * Address review observations: no exception to leak, listeners must raise no exception, adding listener now reports error with Result. * Added MultiRequestBroker utility to collect results from many providers * Support an arbitrary number of arguments for RequestBroker's request/provider signature * MultiRequestBroker allows provider procs to throw exceptions, which will be handled during request processing. * MultiRequestBroker supports one zero arg signature and/or multi arg signature * test no exception leaks from RequestBroker and MultiRequestBroker * Embed MultiRequestBroker tests into common * EventBroker: removed all ...Broker typed public procs to simplify EventBroker interface, forger is renamed to dropListener * Make Request's broker type private * MultiRequestBroker: Use explicit returns in generated procs * Updated descriptions of EventBroker and RequestBroker, updated RequestBroker.setProvider, returns error if already set. * Better description for MultiRequestBroker and its usage * Add EventBroker support for ref objects, fix emit variant with event object ctor * Add RequestBroker support for ref objects * Add MultiRequestBroker support for ref objects * Mover brokers under waku/common