Persist agent chat sessions and protect manual titles

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/server.ts

@@ -5,6 +5,7 @@ import express from "express";
 import { SessionHistoryStore } from "./history/store.js";
 import { ChatSessionBridge } from "./chat/sessionBridge.js";
 import { config } from "./config.js";
+import { ConversationStateStore } from "./conversations/stateStore.js";
 import { ConversationStore } from "./conversations/store.js";
 import { logger } from "./logger.js";
 import { LearningOrchestrator } from "./learning/orchestrator.js";
@@ -19,6 +20,7 @@ import { DynamicHttpExecutor } from "./tools/dynamicHttpExecutor.js";
 const app = express();
 const sessionBridge = new ChatSessionBridge(opencodeRuntime);
 const conversationStore = new ConversationStore();
+const conversationStateStore = new ConversationStateStore();
 const memoryStore = new MemoryStore();
 const sessionHistoryStore = new SessionHistoryStore();
 const toolContextStore = new ToolSessionContextStore();
@@ -246,6 +248,7 @@ app.use(
     sessionBridge,
     opencodeRuntime,
     conversationStore,
+    conversationStateStore,
     memoryStore,
     sessionHistoryStore,
     learningOrchestrator,
@@ -256,6 +259,7 @@ app.use(
 const bootstrap = async () => {
   await Promise.all([
     conversationStore.initialize(),
+    conversationStateStore.initialize(),
     learningOrchestrator.initialize(),
     memoryStore.initialize(),
     resultReferenceStore.initialize(),