fix: 修复Agent头像显示和结果弹窗问题

主要修复:
- 恢复Agent真实头像显示（替换emoji为实际图片）
- 删除自动跳转到ResultPageV2的逻辑
- 修改ResultModal支持动态内容显示
- 根据不同订单班显示对应的方案信息

优化内容:
- 重构Agent系统，每个订单班独立管理Agent配置
- 删除不需要的ResultPageV2组件
- handleViewDetails改为在新标签页打开

影响模块:
- web_frontend/exhibition-demo/src/components/ResultModal.tsx
- web_frontend/exhibition-demo/src/pages/WorkflowPageV4.tsx
- web_frontend/exhibition-demo/src/App.tsx
- web_frontend/exhibition-demo/src/data/terminalSimulations/*.ts

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

web_frontend/web_result/node_modules/cookie-signature/index.js

@@ -0,0 +1,51 @@
+/**
+ * Module dependencies.
+ */
+
+var crypto = require('crypto');
+
+/**
+ * Sign the given `val` with `secret`.
+ *
+ * @param {String} val
+ * @param {String} secret
+ * @return {String}
+ * @api private
+ */
+
+exports.sign = function(val, secret){
+  if ('string' != typeof val) throw new TypeError("Cookie value must be provided as a string.");
+  if ('string' != typeof secret) throw new TypeError("Secret string must be provided.");
+  return val + '.' + crypto
+    .createHmac('sha256', secret)
+    .update(val)
+    .digest('base64')
+    .replace(/\=+$/, '');
+};
+
+/**
+ * Unsign and decode the given `val` with `secret`,
+ * returning `false` if the signature is invalid.
+ *
+ * @param {String} val
+ * @param {String} secret
+ * @return {String|Boolean}
+ * @api private
+ */
+
+exports.unsign = function(val, secret){
+  if ('string' != typeof val) throw new TypeError("Signed cookie string must be provided.");
+  if ('string' != typeof secret) throw new TypeError("Secret string must be provided.");
+  var str = val.slice(0, val.lastIndexOf('.'))
+    , mac = exports.sign(str, secret);
+  
+  return sha1(mac) == sha1(val) ? str : false;
+};
+
+/**
+ * Private
+ */
+
+function sha1(str){
+  return crypto.createHash('sha1').update(str).digest('hex');
+}