chore(web,server): 移除全套AI助手功能相关代码

删除后端AI助手服务文件及对应的/api/ai-assistant接口路由，移除前端ai-assistant.js脚本及所有HTML页面中的脚本引用，清理静态资源版本配置文件里的相关配置项，同时更新bump-web-asset-version.js脚本的示例命令与错误提示文本。

web/token.html

@@ -1,4 +1,4 @@
-<!doctype html>
+<!doctype html>
 <html lang="zh-CN">
 
 <head>
@@ -128,7 +128,6 @@
   <script src="/custom-dialog.js?v=12"></script>
   <script src="/token.js?v=2"></script>
   <script src="/public-status.js?v=13"></script>
-  <script src="/ai-assistant.js?v=6"></script>
   <script>document.addEventListener('DOMContentLoaded', () => {
       const isDomain = location.hostname.includes('fse-media.group'); const links = {
         home: isDomain ? 'https://ticket.fse-media.group' : '/home.html', order: isDomain ? 'https://ticket.fse-media.group/order' : '/ticket-order.html', search: isDomain ? 'https://ticket.fse-media.group/search' : '/ticket-search.html', 'card-search': isDomain ? 'https://ticket.fse-media.group/ic-card/search' : '/ic-card-search.html', 'card-order': isDomain ? 'https://ticket.fse-media.group/ic-card/order' : '/ic-card-order.html'