refactor(core): rename core pkg dir to core

packages/core/src/env.d.ts

@@ -0,0 +1,9 @@
+/// <reference types="vite/client" />
+/// <reference types="vue/macros-global" />
+
+declare module '*.vue' {
+  import type { DefineComponent } from 'vue'
+
+  const component: DefineComponent<{}, {}, any>
+  export default component
+}