Add BootstrapTenantController and requests for tenant domain normalization; implement API route and tests

app/Domains/Tenant/Support/TenantDomainNormalizer.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Domains\Tenant\Support;
+
+class TenantDomainNormalizer
+{
+    public static function hasValue(mixed $domain): bool
+    {
+        return is_string($domain) && trim(urldecode($domain)) !== '';
+    }
+
+    public static function normalize(mixed $domain): ?string
+    {
+        if (! is_string($domain)) {
+            return null;
+        }
+
+        $decodedDomain = trim(urldecode($domain));
+
+        if ($decodedDomain === '') {
+            return null;
+        }
+
+        $candidate = str_contains($decodedDomain, '://')
+            ? $decodedDomain
+            : "//{$decodedDomain}";
+
+        $host = parse_url($candidate, PHP_URL_HOST);
+
+        if (! is_string($host) || $host === '') {
+            return null;
+        }
+
+        return strtolower($host);
+    }
+}