Implement ensemble into final model structure

agent/nodes/ensembleNode.ts

@@ -0,0 +1,17 @@
+import { GraphNode } from "@langchain/langgraph";
+import { MessagesState } from "../state";
+import { AIMessage } from "@langchain/core/messages";
+import { evaluateWithEnsemble } from "../tools/ensembleCall";
+
+export function createEnsembleNode(title: string, method: string): GraphNode<typeof MessagesState> {
+  return async (state) => {
+    const answer = state.proposedTriggerEvent[state.proposedTriggerEventIndex].Event
+
+    const result = await evaluateWithEnsemble({ answer, method })
+    const score = result.validProb - result.invalidProb;
+
+    return {
+      messages: [new AIMessage(title + ":" + score)]
+    };
+  };
+};