feat: use migration over artisan call

README.md

@@ -63,7 +63,6 @@ Add basic site data:
 $ php artisan add-site-settings
 $ php artisan add-text-pages
 $ php artisan copy-default-images
-$ php artisan convert-character-subtype
 ```
 
 Finally, set up the admin account for logging in:

database/migrations/2024_08_28_103434_convert_character_subtypes.php

@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        //
+        if (!Schema::hasTable('character_image_subtypes')) {
+            $this->call('convert-character-subtype');
+        }
+
+        // check call was successful
+        if (!Schema::hasTable('character_image_subtypes')) {
+            throw new \Exception('The character_image_subtypes table does not exist.');
+        }
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        //
+        throw new \Exception('This migration cannot be reversed.');
+    }
+};