feat: implement admin management

app/Models/AdminAvatar.php

@@ -0,0 +1,50 @@
+<?php
+
+/**
+ * Created by Reliese Model.
+ */
+
+namespace App\Models;
+
+use Carbon\Carbon;
+use Illuminate\Database\Eloquent\Model;
+
+/**
+ * Class AdminAvatar
+ *
+ * @property int $id
+ * @property int|null $file_id
+ * @property int $admin_id
+ * @property Carbon $created_at
+ *
+ * @property Admin $admin
+ * @property File|null $file
+ *
+ * @package App\Models
+ */
+class AdminAvatar extends Model
+{
+	protected $table = 'admin_avatars';
+
+	public static $snakeAttributes = false;
+
+	protected $casts = [
+		'file_id' => 'int',
+		'admin_id' => 'int'
+	];
+
+	protected $fillable = [
+		'file_id',
+		'admin_id'
+	];
+
+	public function admin()
+	{
+		return $this->belongsTo(Admin::class);
+	}
+
+	public function file()
+	{
+		return $this->belongsTo(File::class);
+	}
+}