feat: 增强奖池与钱包服务的多币种支持能力

更新 JackpotManualBurstService：在解析头奖中奖者时支持币种代码处理。
重构 SettlementBatchWorkflowService：按币种聚合玩家派奖金额，确保各币种结算准确入账。
修改 SettlementOrchestrator：按币种分别处理奖池爆奖流程，提升派奖准确性。
优化 TicketWalletService：在派奖幂等键中加入币种信息，避免多币种场景下的重复处理问题。
新增测试用例，验证多币种派奖场景及待处理交易的正确处理逻辑。

tests/Feature/SettlementOrchestratorTest.php

@@ -411,3 +411,195 @@ test('settlement reject reverts tickets to pending_draw and allows re-settlement
     expect($item->status)->toBe('settled_win')
         ->and($draw->status)->toBe(DrawStatus::Settled->value);
 });
+
+test('payout credits same player separately per currency', function (): void {
+    $uniq = bin2hex(random_bytes(4));
+    $player = Player::query()->create([
+        'site_code' => 'test',
+        'site_player_id' => 'settle-multi-currency-'.$uniq,
+        'username' => 'smc_'.$uniq,
+        'nickname' => null,
+        'default_currency' => 'NPR',
+        'status' => 0,
+    ]);
+    PlayerWallet::query()->create([
+        'player_id' => $player->id,
+        'wallet_type' => 'lottery',
+        'currency_code' => 'NPR',
+        'balance' => 100_000,
+        'frozen_balance' => 0,
+        'status' => 0,
+        'version' => 0,
+    ]);
+    PlayerWallet::query()->create([
+        'player_id' => $player->id,
+        'wallet_type' => 'lottery',
+        'currency_code' => 'USD',
+        'balance' => 200_000,
+        'frozen_balance' => 0,
+        'status' => 0,
+        'version' => 0,
+    ]);
+
+    $draw = Draw::query()->create([
+        'draw_no' => '20260511-990',
+        'business_date' => '2026-05-11',
+        'sequence_no' => 990,
+        'status' => DrawStatus::Settling->value,
+        'start_time' => now()->subMinutes(10),
+        'close_time' => now()->subMinutes(5),
+        'draw_time' => now()->subMinutes(4),
+        'cooling_end_time' => null,
+        'result_source' => null,
+        'current_result_version' => 1,
+        'settle_version' => 1,
+        'is_reopened' => false,
+    ]);
+    $resultBatch = DrawResultBatch::query()->create([
+        'draw_id' => $draw->id,
+        'result_version' => 1,
+        'source_type' => 'rng',
+        'rng_seed_hash' => 'multi-currency',
+        'raw_seed_encrypted' => null,
+        'status' => DrawResultBatchStatus::Published->value,
+        'created_by' => null,
+        'confirmed_by' => null,
+        'confirmed_at' => now(),
+    ]);
+
+    $orderNpr = TicketOrder::query()->create([
+        'order_no' => 'TO-NPR-'.$uniq,
+        'player_id' => $player->id,
+        'draw_id' => $draw->id,
+        'currency_code' => 'NPR',
+        'total_bet_amount' => 1000,
+        'total_rebate_amount' => 0,
+        'total_actual_deduct' => 1000,
+        'total_estimated_payout' => 0,
+        'status' => 'placed',
+        'submit_source' => 'h5',
+        'client_trace_id' => null,
+        'play_config_version_no' => 1,
+        'odds_version_no' => 1,
+        'risk_cap_version_no' => 1,
+    ]);
+    $orderUsd = TicketOrder::query()->create([
+        'order_no' => 'TO-USD-'.$uniq,
+        'player_id' => $player->id,
+        'draw_id' => $draw->id,
+        'currency_code' => 'USD',
+        'total_bet_amount' => 2000,
+        'total_rebate_amount' => 0,
+        'total_actual_deduct' => 2000,
+        'total_estimated_payout' => 0,
+        'status' => 'placed',
+        'submit_source' => 'h5',
+        'client_trace_id' => null,
+        'play_config_version_no' => 1,
+        'odds_version_no' => 1,
+        'risk_cap_version_no' => 1,
+    ]);
+
+    $itemNpr = TicketItem::query()->create([
+        'ticket_no' => 'TK-NPR-'.$uniq,
+        'order_id' => $orderNpr->id,
+        'player_id' => $player->id,
+        'draw_id' => $draw->id,
+        'original_number' => '1234',
+        'normalized_number' => '1234',
+        'play_code' => 'big',
+        'dimension' => 'D4',
+        'digit_slot' => null,
+        'bet_mode' => 'single',
+        'unit_bet_amount' => 1000,
+        'total_bet_amount' => 1000,
+        'rebate_rate_snapshot' => 0,
+        'commission_rate_snapshot' => 0,
+        'actual_deduct_amount' => 1000,
+        'odds_snapshot_json' => [],
+        'rule_snapshot_json' => [],
+        'combination_count' => 1,
+        'estimated_max_payout' => 0,
+        'risk_locked_amount' => 0,
+        'status' => 'pending_payout',
+        'fail_reason_code' => null,
+        'fail_reason_text' => null,
+        'win_amount' => 5000,
+        'jackpot_win_amount' => 0,
+        'settled_at' => null,
+    ]);
+    $itemUsd = TicketItem::query()->create([
+        'ticket_no' => 'TK-USD-'.$uniq,
+        'order_id' => $orderUsd->id,
+        'player_id' => $player->id,
+        'draw_id' => $draw->id,
+        'original_number' => '5678',
+        'normalized_number' => '5678',
+        'play_code' => 'big',
+        'dimension' => 'D4',
+        'digit_slot' => null,
+        'bet_mode' => 'single',
+        'unit_bet_amount' => 2000,
+        'total_bet_amount' => 2000,
+        'rebate_rate_snapshot' => 0,
+        'commission_rate_snapshot' => 0,
+        'actual_deduct_amount' => 2000,
+        'odds_snapshot_json' => [],
+        'rule_snapshot_json' => [],
+        'combination_count' => 1,
+        'estimated_max_payout' => 0,
+        'risk_locked_amount' => 0,
+        'status' => 'pending_payout',
+        'fail_reason_code' => null,
+        'fail_reason_text' => null,
+        'win_amount' => 8000,
+        'jackpot_win_amount' => 0,
+        'settled_at' => null,
+    ]);
+
+    $batch = SettlementBatch::query()->create([
+        'draw_id' => $draw->id,
+        'result_batch_id' => $resultBatch->id,
+        'settle_version' => 1,
+        'status' => 'approved',
+        'review_status' => 'approved',
+        'reviewed_by' => null,
+        'reviewed_at' => now(),
+        'review_remark' => null,
+        'started_at' => now()->subMinute(),
+        'finished_at' => now(),
+    ]);
+    $batch->details()->create([
+        'ticket_item_id' => $itemNpr->id,
+        'matched_prize_tier' => 'first',
+        'win_amount' => 5000,
+        'jackpot_allocation_amount' => 0,
+        'match_detail_json' => [],
+    ]);
+    $batch->details()->create([
+        'ticket_item_id' => $itemUsd->id,
+        'matched_prize_tier' => 'first',
+        'win_amount' => 8000,
+        'jackpot_allocation_amount' => 0,
+        'match_detail_json' => [],
+    ]);
+
+    app(SettlementBatchWorkflowService::class)->payout($batch->fresh());
+
+    $walletNpr = PlayerWallet::query()
+        ->where('player_id', $player->id)
+        ->where('currency_code', 'NPR')
+        ->firstOrFail();
+    $walletUsd = PlayerWallet::query()
+        ->where('player_id', $player->id)
+        ->where('currency_code', 'USD')
+        ->firstOrFail();
+
+    expect((int) $walletNpr->balance)->toBe(105_000)
+        ->and((int) $walletUsd->balance)->toBe(208_000);
+
+    expect(WalletTxn::query()
+        ->where('biz_type', 'settle_payout')
+        ->where('player_id', $player->id)
+        ->count())->toBe(2);
+});