created admin panel with some of its content

app/Models/Role.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
+
+class Role extends Model
+{
+    use HasFactory;
+
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array<int, string>
+     */
+    protected $fillable = [
+        'name',
+        'slug',
+        'description',
+    ];
+
+    /**
+     * Get the permissions for the role.
+     */
+    public function permissions(): BelongsToMany
+    {
+        return $this->belongsToMany(Permission::class, 'role_permission')
+                    ->withTimestamps();
+    }
+
+    /**
+     * Get the users for the role.
+     */
+    public function users(): BelongsToMany
+    {
+        return $this->belongsToMany(User::class, 'user_roles')
+                    ->withPivot('tenant_id')
+                    ->withTimestamps();
+    }
+
+    /**
+     * Check if role has a specific permission.
+     */
+    public function hasPermission(string $permissionSlug): bool
+    {
+        return $this->permissions()->where('slug', $permissionSlug)->exists();
+    }
+}