add doctor command

src/SPC/doctor/CheckResult.php

@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SPC\doctor;
+
+class CheckResult
+{
+    public function __construct(private string $message = '', private string $fix_item = '', private array $fix_params = [])
+    {
+    }
+
+    public static function fail(string $message, string $fix_item = '', array $fix_params = []): CheckResult
+    {
+        return new static($message, $fix_item, $fix_params);
+    }
+
+    public static function ok(): CheckResult
+    {
+        return new static();
+    }
+
+    public function getMessage(): string
+    {
+        return $this->message;
+    }
+
+    public function getFixItem(): string
+    {
+        return $this->fix_item;
+    }
+
+    public function getFixParams(): array
+    {
+        return $this->fix_params;
+    }
+
+    public function isOK(): bool
+    {
+        return empty($this->message);
+    }
+}