fix: complete InvesteMoz validation and error corrections

app/Support/CheckedPattern.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Support;
+
+use RuntimeException;
+
+final class CheckedPattern
+{
+    /** @return list<string> */
+    public static function split(string $pattern, string $value): array
+    {
+        $parts = preg_split($pattern, $value);
+        if ($parts === false) {
+            throw new RuntimeException('Text could not be split; original content has been preserved.');
+        }
+
+        return $parts;
+    }
+}