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/Models/TicketSettlementDetail.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+/** 注单项结算明细 {@see ticket_settlement_details} */
+class TicketSettlementDetail extends Model
+{
+    protected $fillable = [
+        'settlement_batch_id',
+        'ticket_item_id',
+        'matched_prize_tier',
+        'win_amount',
+        'jackpot_allocation_amount',
+        'match_detail_json',
+    ];
+
+    protected function casts(): array
+    {
+        return [
+            'settlement_batch_id' => 'integer',
+            'ticket_item_id' => 'integer',
+            'win_amount' => 'integer',
+            'jackpot_allocation_amount' => 'integer',
+            'match_detail_json' => 'json',
+        ];
+    }
+
+    public function batch(): BelongsTo
+    {
+        return $this->belongsTo(SettlementBatch::class, 'settlement_batch_id');
+    }
+
+    public function ticketItem(): BelongsTo
+    {
+        return $this->belongsTo(TicketItem::class, 'ticket_item_id');
+    }
+}