[FIX] 訪客取貨/通行頁 QR Code 改用公開路由，修正手機開啟失效

1. 新增公開路由 qr-code.public（throttle:120,1），不需管理員登入即可產生 QR 圖片，供訪客頁渲染使用。
2. qr-code Blade 元件 dynamic=false 分支改指向 qr-code.public，原本指向需登入的 admin.basic-settings.qr-code，導致手機開連結時因無 session 被導向登入頁、圖片失效。
3. 後台列表頁（dynamic=true，登入狀態）維持原 admin 路由不變。

resources/views/components/qr-code.blade.php

@@ -5,7 +5,7 @@
          {{ $attributes->merge(['class' => 'object-contain']) }}
          alt="QR Code">
 @else
-    <img src="{{ route('admin.basic-settings.qr-code', ['data' => $data, 'size' => $size]) }}" 
+    <img src="{{ route('qr-code.public', ['data' => $data, 'size' => $size]) }}"
          {{ $attributes->merge(['class' => 'object-contain']) }}
          alt="QR Code">
 @endif

routes/web.php

@@ -40,6 +40,9 @@ Route::get('/p/{slug}', [App\Http\Controllers\Guest\PickupController::class, 'sh
 Route::get('/t/{slug}', [App\Http\Controllers\Guest\PassCodeController::class, 'show'])->name('pass-code.ticket')->middleware('throttle:60,1');
 Route::get('/g/{slug}', [App\Http\Controllers\Guest\WelcomeGiftController::class, 'show'])->name('welcome-gift.ticket')->middleware('throttle:60,1');
 
+// 公開 QR 產生 (供訪客取貨/通行/好禮頁渲染，無需登入)
+Route::get('/qr-code', [App\Http\Controllers\Admin\QrCodeController::class, 'generate'])->name('qr-code.public')->middleware('throttle:120,1');
+
 Route::get('/dashboard', function () {
     return redirect()->route('admin.dashboard');
 })->middleware(['auth', 'auth.session', 'verified'])->name('dashboard');