refactor(dev): 将 $__DEV__ 重命名为 __DEV__

src/plugins/_.ts

@@ -2,7 +2,7 @@ import { autoAnimatePlugin } from '@formkit/auto-animate/vue';
 import { createHead } from '@unhead/vue/client';
 
 export function install({ app }: { app: import('vue').App<Element> }) {
-  app.config.globalProperties.$__DEV__ = $__DEV__;
+  app.config.globalProperties.__DEV__ = __DEV__;
 
   app.use(autoAnimatePlugin); // v-auto-animate="{ duration: 100 }"
 

src/plugins/router.ts

@@ -14,7 +14,7 @@ const router = createRouter({
   strict: true,
 });
 if (import.meta.hot) handleHotUpdate(router);
-if ($__DEV__) Object.assign(globalThis, { router });
+if (__DEV__) Object.assign(globalThis, { router });
 router.onError((error) => {
   console.debug('🚨 [router error]:', error);
 });