fix: disable route prefetching app-wide to avoid spurious requests

Wrap next/link in a shared Link component that ships prefetch=false by
default, so no route is ever prefetched (viewport or hover) anymore, and
drop the DNS prefetch hint. Removes hidden background requests that were
the source of intermittent issues.

src/components/admin/admin-breadcrumb.tsx

@@ -1,6 +1,6 @@
 import { ChevronRight, Home } from "lucide-react";
-import Link from "next/link";
 import { Fragment } from "react";
+import Link from "@/components/link";
 
 export type { BreadcrumbItem } from "@/types/common";
 

src/components/admin/admin-nav-link.tsx

@@ -1,9 +1,9 @@
 "use client";
 
-import Link from "next/link";
 import { usePathname } from "next/navigation";
 import type { ReactNode } from "react";
 import { useAdminMobile } from "@/components/admin/admin-mobile-wrapper";
+import Link from "@/components/link";
 
 /**
  * Sidebar link that highlights when its route is active.

src/components/admin/admin-section-tabs.tsx

@@ -1,8 +1,8 @@
 "use client";
 
-import Link from "next/link";
 import { usePathname } from "next/navigation";
 import { useTranslations } from "next-intl";
+import Link from "@/components/link";
 import { cn } from "@/lib/utils";
 
 export interface AdminTab {

src/components/admin/admin-simple-pager.tsx

@@ -1,4 +1,4 @@
-import Link from "next/link";
+import Link from "@/components/link";
 
 /** Minimal prev/next pager for admin list pages without DataTable. */
 export function AdminSimplePager({

src/components/admin/article-card.tsx

@@ -1,11 +1,11 @@
 "use client";
 
-import Link from "next/link";
 import { useRouter } from "next/navigation";
 import { useTranslations } from "next-intl";
 import { useTransition } from "react";
 import { deleteArticle } from "@/actions/admin-articles";
 import { useConfirmDialog } from "@/components/admin/confirm-dialog";
+import Link from "@/components/link";
 
 export function ArticleCard({
 	id,

src/components/admin/catalog-manager/inline-editor.tsx

@@ -11,7 +11,6 @@ import {
 	Save,
 	Settings,
 } from "lucide-react";
-import Link from "next/link";
 import { useCallback, useEffect, useMemo, useState } from "react";
 import { toast } from "sonner";
 import { updateCatalogPage } from "@/actions/catalog";
@@ -27,6 +26,7 @@ import { IconPicker } from "@/components/admin/catalog/icon-picker";
 import { ItemsShopPreview } from "@/components/admin/catalog/items-shop-preview";
 import { QuickAddFurni } from "@/components/admin/catalog/quick-add-furni";
 import { CatalogIcon, LAYOUT_COLORS } from "@/components/admin/catalog-tree";
+import Link from "@/components/link";
 import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";

src/components/admin/catalog-tree.tsx

@@ -21,7 +21,6 @@ import {
 	Trash2,
 	X,
 } from "lucide-react";
-import Link from "next/link";
 import { useRouter } from "next/navigation";
 import {
 	createContext,
@@ -33,6 +32,7 @@ import {
 } from "react";
 import { toast } from "sonner";
 import { useConfirmDialog } from "@/components/admin/confirm-dialog";
+import Link from "@/components/link";
 import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
 import {

src/components/admin/stats-card.tsx

@@ -1,5 +1,5 @@
 import { Minus, TrendingDown, TrendingUp } from "lucide-react";
-import Link from "next/link";
+import Link from "@/components/link";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
 
 interface StatsCardProps {

src/components/admin/ticket-queue-banner.tsx

@@ -1,4 +1,4 @@
-import Link from "next/link";
+import Link from "@/components/link";
 
 /** Shared clarity banner for dual ticket products (CMS desk vs help-center). */
 export function TicketQueueBanner({

src/components/admin/unified-tickets-table.tsx

@@ -1,8 +1,8 @@
 "use client";
 
-import Link from "next/link";
 import { useTranslations } from "next-intl";
 import { DataTable } from "@/components/admin/data-table";
+import Link from "@/components/link";
 import { Badge } from "@/components/ui/badge";
 import type { TicketInboxRow } from "@/lib/admin/ticket-inbox";
 import type { DataTableColumn, PaginatedResult } from "@/types/common";