optimizations

app/Models/CollectionEntityLink.php

@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class CollectionEntityLink extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'collection_id',
+        'linked_type',
+        'linked_id',
+        'relationship_type',
+        'metadata_json',
+    ];
+
+    protected $casts = [
+        'metadata_json' => 'array',
+    ];
+
+    public function collection(): BelongsTo
+    {
+        return $this->belongsTo(Collection::class);
+    }
+}