fix: frontend build error

frontend/src/vite-env.d.ts

@@ -0,0 +1,16 @@
+/// <reference types="vite/client" />
+
+interface ImportMetaEnv {
+  readonly VITE_API_BASE_URL: string
+  readonly BASE_URL: string
+}
+
+interface ImportMeta {
+  readonly env: ImportMetaEnv
+}
+
+declare module '*.vue' {
+  import type { DefineComponent } from 'vue'
+  const component: DefineComponent<{}, {}, any>
+  export default component
+}