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/admin-web/src/components/KnowledgeGroupSelect.vue

@@ -1,57 +1,55 @@
 <script setup lang="ts">
-import { useQuery } from "@tanstack/vue-query";
-import type { KnowledgeGroup } from "@geo/shared-types";
-import { computed } from "vue";
+import type { KnowledgeGroup } from '@geo/shared-types'
+import { useQuery } from '@tanstack/vue-query'
+import { computed } from 'vue'
 
-import { knowledgeApi } from "@/lib/api";
+import { knowledgeApi } from '@/lib/api'
 
 interface TreeNode {
-  title: string;
-  value: number;
-  key: number;
-  children?: TreeNode[];
+  title: string
+  value: number
+  key: number
+  children?: TreeNode[]
 }
 
-const props = withDefaults(
+withDefaults(
   defineProps<{
-    modelValue?: number[];
-    placeholder?: string;
-    disabled?: boolean;
+    modelValue?: number[]
+    placeholder?: string
+    disabled?: boolean
   }>(),
   {
     modelValue: () => [],
-    placeholder: "请选择知识库分组",
+    placeholder: '请选择知识库分组',
     disabled: false,
   },
-);
+)
 
 const emit = defineEmits<{
-  "update:modelValue": [value: number[]];
-}>();
+  'update:modelValue': [value: number[]]
+}>()
 
 const groupsQuery = useQuery({
-  queryKey: ["knowledge", "groups", "selector"],
+  queryKey: ['knowledge', 'groups', 'selector'],
   queryFn: () => knowledgeApi.listGroups(),
-});
+})
 
-const treeData = computed(() => (groupsQuery.data.value ?? []).map((item) => toTreeNode(item)));
+const treeData = computed(() => (groupsQuery.data.value ?? []).map((item) => toTreeNode(item)))
 
 function toTreeNode(group: KnowledgeGroup): TreeNode {
   return {
-    title: `${group.name}${group.item_count > 0 ? ` (${group.item_count})` : ""}`,
+    title: `${group.name}${group.item_count > 0 ? ` (${group.item_count})` : ''}`,
     value: group.id,
     key: group.id,
     children: (group.children ?? []).map((item) => toTreeNode(item)),
-  };
+  }
 }
 
 function handleChange(values: Array<string | number>): void {
   emit(
-    "update:modelValue",
-    values
-      .map((item) => Number(item))
-      .filter((item) => Number.isFinite(item) && item > 0),
-  );
+    'update:modelValue',
+    values.map((item) => Number(item)).filter((item) => Number.isFinite(item) && item > 0),
+  )
 }
 </script>