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/BigSpreadSettlementMatcher.php

@@ -0,0 +1,59 @@
+<?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;
+
+/**
+ * Big / 包号展开类：命中 23 档中**最优档**计奖（产品文档 Big / iBox / mBox / Box）。
+ */
+final class BigSpreadSettlementMatcher implements SettlementPlayMatcher
+{
+    public function __construct(
+        private readonly OddsSnapshotReader $odds,
+    ) {}
+
+    public function match(TicketItem $item, PublishedDrawResultBoard $board, Collection $combinations): array
+    {
+        $snapshot = is_array($item->odds_snapshot_json) ? $item->odds_snapshot_json : null;
+        $lines = [];
+        $total = 0;
+        $bestTier = null;
+        $bestRank = 99;
+
+        foreach ($combinations as $c) {
+            /** @var TicketCombination $c */
+            $hit = $board->bestTierForNumber((string) $c->number_4d);
+            if ($hit === null) {
+                continue;
+            }
+            $tier = $hit['tier'];
+            $oddsVal = $this->odds->oddsValueForScope($snapshot, $tier);
+            $bet = (int) $c->bet_amount;
+            $payout = (int) floor($bet * ($oddsVal / 10_000));
+            $total += $payout;
+            $lines[] = [
+                'number_4d' => $c->number_4d,
+                'matched_tier' => $tier,
+                'bet_amount' => $bet,
+                'odds_value' => $oddsVal,
+                'payout' => $payout,
+            ];
+            if ($hit['rank'] < $bestRank) {
+                $bestRank = $hit['rank'];
+                $bestTier = $tier;
+            }
+        }
+
+        return [
+            'win_amount' => $total,
+            'matched_prize_tier' => $bestTier,
+            'match_detail' => ['lines' => $lines],
+        ];
+    }
+}