fix: lazy-load ReferenceError + localize Font Awesome

- app.js: remove window.Dashboard=... block that crashed the whole
  file before page scripts load (ReferenceError: Dashboard is not
  defined). Page objects are top-level const in global lexical
  scope; PAGE_OBJS map + indirect eval in loadScript onload now
  expose them to window for inline onclick / data-action lookups
- index.html: Font Awesome 6.5.1 localized (css/fontawesome.min.css
  + 8 webfont files) - no more cdnjs CDN (Edge Tracking Prevention
  blocked it, CN access unstable)

public/js/app.js

@@ -128,12 +128,49 @@ const App = {
     bans: ['bans'],
     logs: ['logs'],
   },
+  // 脚本文件 → 顶层 const 页面对象(懒加载后经间接 eval 挂到 window)
+  PAGE_OBJS: {
+    'home.js': ['HomePage'],
+    'ticket-create.js': ['TicketCreate'],
+    'install.js': ['InstallPage'],
+    'login.js': ['LoginPage'],
+    'register.js': ['RegisterPage'],
+    'forgot.js': ['ForgotPage', 'ResetPage'],
+    'verify.js': ['VerifyPage'],
+    'dashboard.js': ['Dashboard'],
+    'unclaimed.js': ['UnclaimedPage'],
+    'tickets.js': ['TicketsPage'],
+    'ticket-detail.js': ['TicketDetail'],
+    'tracking.js': ['TrackingPage'],
+    'users.js': ['UsersPage'],
+    'notifications.js': ['NotificationsPage'],
+    'external-api.js': ['ExternalApiPage'],
+    'external-api-docs.js': ['ExternalApiDocsPage'],
+    'sources.js': ['SourcesPage'],
+    'templates.js': ['TemplatesPage'],
+    'settings-page.js': ['SettingsPage'],
+    'export-page.js': ['ExportPage'],
+    'polls.js': ['PollsPage'],
+    'features.js': ['FeaturesPage'],
+    'feature-detail.js': ['FeatureDetail'],
+    'servers.js': ['ServersPage'],
+    'bans.js': ['BansPage'],
+    'logs.js': ['LogsPage'],
+  },
   loadScript(src) {
     if (this._scriptCache[src]) return this._scriptCache[src];
     const p = new Promise((resolve, reject) => {
       const s = document.createElement('script');
       s.src = src;
-      s.onload = () => resolve();
+      s.onload = () => {
+        // 页面脚本顶层 const 在全局词法环境, 用间接 eval 挂到 window,
+        // 供 inline onclick / data-action 的 window[obj] 查找
+        const objs = this.PAGE_OBJS[src.split('/').pop()] || [];
+        for (const o of objs) {
+          try { if (typeof window[o] === 'undefined') window[o] = (0, eval)(o); } catch {}
+        }
+        resolve();
+      };
       s.onerror = () => { delete this._scriptCache[src]; reject(new Error('脚本加载失败: ' + src)); };
       document.head.appendChild(s);
     });
@@ -280,33 +317,8 @@ const App = {
 };
 
 document.addEventListener('DOMContentLoaded', () => App.init());
-window.App = App;
-window.Dashboard = Dashboard;
-window.TicketsPage = TicketsPage;
-window.TicketDetail = TicketDetail;
-window.TicketCreate = TicketCreate;
-window.TrackingPage = TrackingPage;
-window.UnclaimedPage = UnclaimedPage;
-window.UsersPage = UsersPage;
-window.TemplatesPage = TemplatesPage;
-window.NotificationsPage = NotificationsPage;
-window.ExternalApiPage = ExternalApiPage;
-window.SourcesPage = SourcesPage;
-window.SettingsPage = SettingsPage;
-window.ExportPage = ExportPage;
-window.PollsPage = PollsPage;
-window.FeaturesPage = FeaturesPage;
-window.FeatureDetail = FeatureDetail;
-window.ServersPage = ServersPage;
-window.BansPage = BansPage;
-window.LogsPage = LogsPage;
-window.LoginPage = LoginPage;
-window.RegisterPage = RegisterPage;
-window.HomePage = HomePage;
-window.InstallPage = InstallPage;
-window.ForgotPage = ForgotPage;
-window.ResetPage = ResetPage;
-window.VerifyPage = VerifyPage;
+// 页面对象(window.Dashboard 等)由各自脚本以顶层 const 定义, 全局词法环境可访问,
+// 无需在此挂载(懒加载下此处引用会导致 ReferenceError 崩掉整个 app.js)
 window.U = U;
 window.Auth = Auth;
 window.API = API;