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/public-status.js

@@ -13,8 +13,6 @@
         '/api/public/popular',
         '/api/assets/manifest'
     ];
-    const ASSISTANT_SCRIPT_ID = 'tm-ai-assistant-script';
-    const ASSISTANT_ASSET_VERSION = '2';
 
     const roots = () => Array.from(document.querySelectorAll('[data-server-status-root]'));
 
@@ -68,29 +66,8 @@
     };
 
     let timerId = null;
-    const isAssistantEligiblePage = (body) => {
-        if (!body) return false;
-        if (body.classList.contains('jr-admin-page') || body.classList.contains('jr-admin-login-page')) return false;
-        return body.classList.contains('jr-public-page')
-            || body.classList.contains('public-search')
-            || body.classList.contains('jr-order-page')
-            || body.classList.contains('jr-ticket-board-page');
-    };
-
-    const loadAssistant = () => {
-        const body = document.body;
-        if (!isAssistantEligiblePage(body)) return;
-        if (document.getElementById(ASSISTANT_SCRIPT_ID) || window.__tmAiAssistantLoaded) return;
-
-        const script = document.createElement('script');
-        script.id = ASSISTANT_SCRIPT_ID;
-        script.src = `/ai-assistant.js?v=${ASSISTANT_ASSET_VERSION}`;
-        script.defer = true;
-        document.head.appendChild(script);
-    };
 
     const init = () => {
-        loadAssistant();
         if (!roots().length || timerId !== null) return;
 
         refresh();