refactor：拆分 API 路由与请求校验，统一 final 类和代码风格

app/Http/Controllers/Api/V1/Admin/Player/AdminPlayerTicketItemsIndexController.php

@@ -2,12 +2,13 @@
 
 namespace App\Http\Controllers\Api\V1\Admin\Player;
 
-use App\Http\Controllers\Controller;
 use App\Models\Player;
 use App\Models\TicketItem;
 use App\Support\ApiResponse;
+use App\Support\PaginationTrait;
 use Illuminate\Http\JsonResponse;
-use Illuminate\Http\Request;
+use App\Http\Controllers\Controller;
+use App\Http\Requests\Admin\AdminPlayerTicketItemsRequest;
 
 /**
  * GET /api/v1/admin/players/{player}/ticket-items — 客服/财务按玩家查注单（PRD §15.4）。
@@ -16,17 +17,16 @@ use Illuminate\Http\Request;
  */
 final class AdminPlayerTicketItemsIndexController extends Controller
 {
-    public function __invoke(Request $request, Player $player): JsonResponse
-    {
-        $validated = validator($request->query(), [
-            'page' => ['sometimes', 'integer', 'min:1'],
-            'per_page' => ['sometimes', 'integer', 'min:1', 'max:50'],
-            'draw_no' => ['sometimes', 'nullable', 'string', 'max:32'],
-        ])->validate();
+    use PaginationTrait;
 
-        $perPage = max(1, min(50, (int) ($validated['per_page'] ?? 20)));
-        $page = max(1, (int) ($validated['page'] ?? 1));
-        $drawNo = isset($validated['draw_no']) ? trim((string) $validated['draw_no']) : '';
+    public function __invoke(AdminPlayerTicketItemsRequest $request, Player $player): JsonResponse
+    {
+        $perPage = $this->perPage($request, 'per_page', 20, 50);
+        $page = $this->page($request);
+        $drawNo = $request->validated('draw_no');
+        if (is_string($drawNo)) {
+            $drawNo = trim($drawNo);
+        }
 
         $query = TicketItem::query()
             ->where('ticket_items.player_id', $player->id)