feat: 更新嵌入式文件系统逻辑，支持路径清理和静态资源请求处理，增强前端主题切换能力

atsf_server/web/app/globals.css

@@ -6,18 +6,27 @@
 }
 
 html {
+  background: var(--surface-canvas);
+}
+
+html[data-theme='light'] {
+  color-scheme: light;
+}
+
+html[data-theme='dark'] {
   color-scheme: dark;
 }
 
 body {
   min-height: 100vh;
-  background:
-    radial-gradient(circle at top, rgba(56, 189, 248, 0.08), transparent 30%),
-    linear-gradient(180deg, rgba(8, 17, 31, 0.98), rgba(8, 17, 31, 1));
+  background: var(--body-background);
   color: var(--foreground-primary);
   font-family:
     Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI',
     sans-serif;
+  transition:
+    background 0.2s ease,
+    color 0.2s ease;
 }
 
 a {
@@ -30,6 +39,6 @@ button {
 }
 
 ::selection {
-  background: rgba(56, 189, 248, 0.32);
-  color: #f8fafc;
+  background: var(--selection-background);
+  color: var(--selection-foreground);
 }

atsf_server/web/app/layout.tsx

@@ -1,7 +1,9 @@
 import type { Metadata } from 'next';
+import Script from 'next/script';
 import type { ReactNode } from 'react';
 
 import { AppProviders } from '@/components/providers/app-providers';
+import { getThemeInitScript } from '@/lib/theme/theme';
 
 import './globals.css';
 
@@ -22,6 +24,9 @@ export default function RootLayout({ children }: RootLayoutProps) {
   return (
     <html lang='zh-CN' suppressHydrationWarning>
       <body>
+        <Script id='theme-init' strategy='beforeInteractive'>
+          {getThemeInitScript()}
+        </Script>
         <AppProviders>{children}</AppProviders>
       </body>
     </html>

atsf_server/web/app/not-found.tsx

@@ -8,7 +8,7 @@ export default function NotFound() {
       <AppCard title='页面不存在' description='当前请求的页面尚未接入新版管理端路由。'>
         <div className='space-y-4 text-sm leading-6 text-[var(--foreground-secondary)]'>
           <p>请返回总览页，或继续通过侧边导航访问已初始化的模块入口。</p>
-          <Link href='/' className='inline-flex rounded-full bg-sky-400 px-4 py-2 font-medium text-slate-950 transition hover:bg-sky-300'>
+          <Link href='/' className='inline-flex rounded-full bg-[var(--brand-primary)] px-4 py-2 font-medium text-[var(--foreground-inverse)] transition hover:opacity-90'>
             返回总览
           </Link>
         </div>