feat: add tenant and user management with migrations, handlers, and tests

- Implemented tenant and user management features including:
  - Tenant creation and management with associated migrations.
  - User creation and management with associated migrations.
  - Tenant membership management with associated migrations.
  - Platform user roles management with associated migrations.
  - Quota management with associated migrations.
  - Article and template management with associated migrations.
- Added HTTP handlers for templates and workspaces.
- Created tests for protected and public routes.
- Introduced a script to check tenant scope in SQL queries.
- Documented task plan for backend completion and frontend foundation.

apps/admin-web/src/App.vue

@@ -0,0 +1,26 @@
+<script setup lang="ts">
+import enUS from "ant-design-vue/es/locale/en_US";
+import zhCN from "ant-design-vue/es/locale/zh_CN";
+import { computed } from "vue";
+import { useI18n } from "vue-i18n";
+
+const { locale } = useI18n();
+const antLocale = computed(() => (locale.value === "en-US" ? enUS : zhCN));
+</script>
+
+<template>
+  <a-config-provider
+    :locale="antLocale"
+    :theme="{
+      token: {
+        colorPrimary: '#1677ff',
+        borderRadius: 6,
+        colorBgLayout: '#f0f2f5',
+      },
+    }"
+  >
+    <a-app class="app-root">
+      <router-view />
+    </a-app>
+  </a-config-provider>
+</template>