fix(agent): isolate conversation workspaces

src/chat/sessionBridge.ts

@@ -12,6 +12,7 @@ export type SessionBinding = {
   clientSessionId: string;
   sessionId: string;
   startedAt: number;
+  workspaceDirectory?: string;
 };
 
 export type SessionContext = {
@@ -52,20 +53,26 @@ export class ChatSessionBridge {
     await this.abortActiveRuntime(requestContext.clientSessionId, existingSessionId);
 
     let sessionId = existingSessionId;
+    let runtimeSession;
     let created = false;
     if (!sessionId) {
-      const session = await this.runtime.createSession();
-      sessionId = session.id;
+      runtimeSession = await this.runtime.createSession(undefined, {
+        conversationWorkspace: true,
+      });
+      sessionId = runtimeSession.id;
       requestContext = {
         ...requestContext,
         clientSessionId: sessionId,
       };
       created = true;
+    } else {
+      runtimeSession = await this.runtime.getSession(sessionId);
     }
     const binding: SessionBinding = {
       clientSessionId: requestContext.clientSessionId,
       sessionId,
       startedAt: Date.now(),
+      workspaceDirectory: runtimeSession.directory,
     };
     setRuntimeSessionContext({
       accessToken: requestContext.accessToken,
@@ -79,6 +86,7 @@ export class ChatSessionBridge {
       sessionId,
       tokenExpiresAt: requestContext.tokenExpiresAt,
       traceId: requestContext.traceId,
+      workspaceDirectory: runtimeSession.directory,
     });
 
     return { binding, requestContext, created };