百家乐后台统计：新增会员输掉金币总数卡片

app/Http/Controllers/Admin/GameHistoryController.php

@@ -113,6 +113,8 @@ class GameHistoryController extends Controller
             'total_rounds' => BaccaratRound::query()->where('status', 'settled')->count(),
             'total_bets' => BaccaratBet::query()->count(),
             'total_payout' => (int) BaccaratRound::query()->where('status', 'settled')->sum('total_payout'),
+            // 会员实际输掉的金币：所有已结算落败注单的押注金额合计
+            'total_lost' => (int) BaccaratBet::query()->where('status', 'lost')->sum('amount'),
             'result_dist' => BaccaratRound::query()
                 ->where('status', 'settled')
                 ->select('result', \Illuminate\Support\Facades\DB::raw('count(*) as cnt'))