chore(frontend): introduce prettier + eslint and prune unused code

- Add Prettier 3 with prettier-plugin-organize-imports (sorts/removes unused imports)
- Add ESLint 10 flat config with typescript-eslint + eslint-plugin-vue + eslint-config-prettier
- Add root scripts: format, format:check, lint, lint:fix
- Reformat 257 files across admin-web, ops-web, desktop-client, packages
- Remove unused locals/exports flagged by --noUnusedLocals/--noUnusedParameters
- Fix duplicate localTabLabel key, surrogate-pair regex u-flag, NBSP literal in regex
- Skip server/ (Go) and apps/browser-extension/ (deprecated per ADR)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/ops-web/src/main.ts

@@ -1,4 +1,4 @@
-import { QueryClient, VueQueryPlugin } from "@tanstack/vue-query";
+import { QueryClient, VueQueryPlugin } from '@tanstack/vue-query'
 import {
   Alert,
   App as AntApp,
@@ -28,15 +28,15 @@ import {
   Tag,
   Tooltip,
   message,
-} from "ant-design-vue";
-import { createApp } from "vue";
+} from 'ant-design-vue'
+import { createApp } from 'vue'
 
-import App from "./App.vue";
-import { bindUnauthorizedHandler } from "@/lib/http";
-import { router } from "@/router";
-import { pinia } from "@/stores/pinia";
-import "./styles.css";
-import "ant-design-vue/dist/reset.css";
+import { bindUnauthorizedHandler } from '@/lib/http'
+import { router } from '@/router'
+import { pinia } from '@/stores/pinia'
+import 'ant-design-vue/dist/reset.css'
+import App from './App.vue'
+import './styles.css'
 
 const queryClient = new QueryClient({
   defaultOptions: {
@@ -46,16 +46,15 @@ const queryClient = new QueryClient({
       retry: false,
     },
   },
-});
+})
 
-const app = createApp(App);
+const app = createApp(App)
 
 bindUnauthorizedHandler(() => {
-  void router.replace({ name: "login" });
-  message.warning("登录已过期，请重新登录");
-});
-
-[
+  void router.replace({ name: 'login' })
+  message.warning('登录已过期，请重新登录')
+})
+;[
   Alert,
   AntApp,
   Avatar,
@@ -84,7 +83,7 @@ bindUnauthorizedHandler(() => {
   Tag,
   Tooltip,
 ].forEach((component) => {
-  app.use(component);
-});
+  app.use(component)
+})
 
-app.use(pinia).use(router).use(VueQueryPlugin, { queryClient }).mount("#app");
+app.use(pinia).use(router).use(VueQueryPlugin, { queryClient }).mount('#app')