chore: refactoring and docs

src/ClusterManager.cpp

@@ -2,7 +2,7 @@
 
 ClusterManager::ClusterManager(NodeContext& ctx) : ctx(ctx) {
     // Register callback for node_discovered event
-    ctx.registerEvent("node_discovered", [this](void* data) {
+    ctx.on("node_discovered", [this](void* data) {
         NodeInfo* node = static_cast<NodeInfo*>(data);
         this->addOrUpdateNode(node->hostname, node->ip);
     });
@@ -111,7 +111,7 @@ void ClusterManager::heartbeatTaskCallback() {
             node.lastSeen = millis();
             node.status = NodeInfo::ACTIVE;
             updateLocalNodeResources();
-            ctx.triggerEvent("node_discovered", &node);
+            ctx.fire("node_discovered", &node);
             break;
         }
     }