refactor：拆分 API 路由与请求校验，统一 final 类和代码风格

app/Models/ReconcileJob.php

@@ -3,10 +3,10 @@
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
-use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
-class ReconcileJob extends Model
+final class ReconcileJob extends Model
 {
     protected $table = 'reconcile_jobs';