feat: 新增玩家管理与转账对账相关功能

1.  新增完整的后台玩家管理CRUD接口，包括列表、创建、详情、更新、删除
2.  新增转账订单冲正和人工处理功能，支持待对账订单状态变更
3.  扩展钱包流水和转账订单的状态支持，新增reversed、manually_processed等状态
4.  新增玩家API数据统一输出类，标准化玩家信息返回格式

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

@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Http\Controllers\Api\V1\Admin\Player;
+
+use App\Models\Player;
+use Illuminate\Http\Request;
+use App\Support\ApiResponse;
+use Illuminate\Http\JsonResponse;
+use App\Http\Controllers\Controller;
+use App\Support\AdminApiList;
+use App\Support\PlayerApiPresenter;
+
+/** GET /api/v1/admin/players */
+final class AdminPlayerIndexController extends Controller
+{
+    public function __invoke(Request $request): JsonResponse
+    {
+        $p = AdminApiList::readPaging($request);
+        $keyword = trim((string) $request->query('keyword', ''));
+        $status = $request->query('status');
+
+        $q = Player::query()
+            ->with(['wallets' => static fn ($wq) => $wq->orderBy('wallet_type')->orderBy('currency_code')])
+            ->orderByDesc('id');
+
+        if ($keyword !== '') {
+            $term = '%'.addcslashes($keyword, '%_\\').'%';
+            $q->where(static function ($sub) use ($term): void {
+                $sub->where('site_player_id', 'like', $term)
+                    ->orWhere('username', 'like', $term)
+                    ->orWhere('nickname', 'like', $term);
+            });
+        }
+
+        if ($status !== null && $status !== '') {
+            $q->where('status', (int) $status);
+        }
+
+        $paginator = $q->paginate($p['perPage'], ['*'], 'page', $p['page']);
+
+        return AdminApiList::json($paginator, fn (Player $player): array => PlayerApiPresenter::listItem($player));
+    }
+}