finished actions => handlers refacto, small bux fix in maestro => Test maestro1 OK

Observer/handlers/arena/index.js

@@ -0,0 +1,17 @@
+import { assembleHandlers, createDispatchMessage } from '../../../bus/assembleMesh.js'
+import * as lifecycle from './lifecycle.js'
+
+const { actionHandlers, eventHandlers, afterLogin } = assembleHandlers([lifecycle])
+
+export { actionHandlers, afterLogin }
+
+export const dispatchMessage = createDispatchMessage({
+    eventHandlers,
+    actionRules(redisCnx) {
+        const observer = redisCnx.config.observer ?? {}
+        const arenaChannel = observer.bus?.arena?.actionsChannel
+        return({
+            channels: arenaChannel ? [arenaChannel] : [],
+        })
+    },
+})