feat: 添加结算功能，更新 TicketItem 模型以支持最新结算详情，增强 DrawTickService 以自动处理结算，更新 TicketWalletService 以支持派彩入账，扩展 API 路由以管理结算批次和奖池

app/Services/Settlement/Matchers/FirstPrizeComboSettlementMatcher.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace App\Services\Settlement\Matchers;
+
+use App\Models\TicketCombination;
+use App\Models\TicketItem;
+use App\Services\Settlement\Contracts\SettlementPlayMatcher;
+use App\Services\Settlement\OddsSnapshotReader;
+use App\Services\Settlement\PublishedDrawResultBoard;
+use Illuminate\Support\Collection;
+
+/**
+ * head / tail / odd / even / digit_big / digit_small：展开组合中若有与**头奖 4D** 完全一致则中奖（赔率档 first）。
+ */
+final class FirstPrizeComboSettlementMatcher implements SettlementPlayMatcher
+{
+    public function __construct(
+        private readonly OddsSnapshotReader $odds,
+    ) {}
+
+    public function match(TicketItem $item, PublishedDrawResultBoard $board, Collection $combinations): array
+    {
+        $first = $board->firstPrizeNumber4d();
+        if ($first === '') {
+            return ['win_amount' => 0, 'matched_prize_tier' => null, 'match_detail' => ['reason' => 'no_first']];
+        }
+
+        $snapshot = is_array($item->odds_snapshot_json) ? $item->odds_snapshot_json : null;
+        $oddsVal = $this->odds->oddsValueForScope($snapshot, 'first');
+        $lines = [];
+        $total = 0;
+
+        foreach ($combinations as $c) {
+            /** @var TicketCombination $c */
+            if ((string) $c->number_4d !== $first) {
+                continue;
+            }
+            $bet = (int) $c->bet_amount;
+            $payout = (int) floor($bet * ($oddsVal / 10_000));
+            $total += $payout;
+            $lines[] = ['number_4d' => $c->number_4d, 'bet_amount' => $bet, 'payout' => $payout];
+        }
+
+        return [
+            'win_amount' => $total,
+            'matched_prize_tier' => $total > 0 ? 'first' : null,
+            'match_detail' => ['lines' => $lines, 'first_prize' => $first],
+        ];
+    }
+}