inter-server comm not really a replacement to customHook / customRequest

customRequest / customHook were triggered for all servers (including current node).

serverSideEmit only works for "other" nodes.

        if (request.uid === this.uid) {
          debug("ignore same uid");
          return;
        }

Of course - we can execute method locally using js function, but if we want to combine answers from other nodes + current node - that requires some additional logic.

Probably worth adding a switch that would allow emiting to local node as well and collect it's result in same manner as remote ones?

Start by tracing serverSideEmit and the same-uid guard shown in the issue. Determine how optional local execution should combine with remote responses, then define completion around the switch behavior and aggregated result; the payload names no files or tests.