feat: implement gas and delivery admin systems

frontend/gas_admin/src/app/env.d.ts

@@ -0,0 +1,22 @@
+/// <reference types="vite/client" />
+/// <reference types="vue/jsx" />
+
+declare module '*.vue' {
+  import type { DefineComponent } from 'vue';
+
+  const component: DefineComponent<
+    Record<string, unknown>,
+    Record<string, unknown>,
+    unknown
+  >;
+  export default component;
+}
+
+interface ImportMetaEnv {
+  readonly VITE_API_BASE_URL: string;
+  readonly VITE_ERROR_REPORT_URL: string;
+}
+
+interface ImportMeta {
+  readonly env: ImportMetaEnv;
+}