feat: add chat replay verification

packages/casan-control-panel/backend/src/chat/chat.controller.ts

@@ -1,4 +1,4 @@
-import { Body, Controller, Get, Headers, Inject, Post } from '@nestjs/common';
+import { Body, Controller, Get, Headers, Inject, Post, Query } from '@nestjs/common';
 import { ok } from '../common/api-response.js';
 import { actorFromHeaders } from '../common/auth-context.js';
 import { ChatAskInput, ChatService } from './chat.service.js';
@@ -17,6 +17,11 @@ export class ChatController {
     return ok(this.svc.verifyAudit());
   }
 
+  @Get('replay')
+  replay(@Query('chatId') chatId?: string, @Query('turnId') turnId?: string) {
+    return ok(this.svc.replay(chatId || '', turnId || ''));
+  }
+
   @Get('actions')
   actions(@Headers() headers: Record<string, string | string[] | undefined>) {
     return ok(this.svc.listActions(actorFromHeaders(headers)));