feat:服务模版 抽离

src/contexts/ThemeContext.jsx

@@ -5,7 +5,7 @@ const ThemeContext = createContext();
 export const ThemeProvider = ({ children }) => {
   const [isDarkMode, setIsDarkMode] = useState(() => {
     const savedTheme = localStorage.getItem('theme');
-    return savedTheme === 'dark' || (savedTheme === null && window.matchMedia('(prefers-color-scheme: dark)').matches);
+    return savedTheme === 'dark';
   });
 
   useEffect(() => {