feat: upgrade investigation and presentation runtime

src/routes/chat.ts

@@ -1,6 +1,8 @@
 import type { TaskCalculationWaiter } from "../mcp/task-calculation-waiter.js";
+import { registerAnswerViewStateRoutes } from "./answer-view-state-routes.js";
 import { registerInteractionRequestRoutes } from "./interaction-request-routes.js";
 import type { InteractionRequestStore } from "../sessions/interaction-request-store.js";
+import type { AnswerViewStateStore } from "../sessions/answer-view-state-store.js";
 import { Router, type NextFunction, type Request, type Response } from "express";
 
 import { agentModelOptions, resolveDefaultModel } from "../chat/models.js";
@@ -37,6 +39,7 @@ export type BuildChatRouterOptions = {
   waitTaskCalculations?: TaskCalculationWaiter;
   interactionRequestStore?: InteractionRequestStore;
   agentMessages?: AgentMessageCoordinator;
+  answerViewStateStore?: AnswerViewStateStore;
   frontendActionCoordinator: FrontendActionCoordinator;
   learningOrchestrator: LearningOrchestrator;
   memoryStore: MemoryStore;
@@ -82,6 +85,7 @@ export const buildChatRouter = (options: BuildChatRouterOptions) => {
       models: agentModelOptions,
     });
   });
+  if (options.answerViewStateStore) registerAnswerViewStateRoutes(chatRouter, { sessions: sessionMetadataStore, states: options.answerViewStateStore });
   if (options.interactionRequestStore) registerInteractionRequestRoutes(chatRouter, { sessions: sessionMetadataStore, interactions: options.interactionRequestStore,
     runtime, isRunning: (sessionId) => activeRuns.get(sessionId)?.status === "running" });
   registerArtifactRoutes(chatRouter, { sessionMetadataStore, runtime });