Add public product landing page at /

Serve a marketing landing page at the site root via ProductLandingController
instead of redirecting straight to login, with config/product_landing.php and
product views.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

config/product_landing.php

@@ -0,0 +1,43 @@
+<?php
+
+return [
+  'slug' => 'hosting',
+  'name' => 'Hosting',
+  'logo' => 'images/logo/ladillhosting-logo.svg',
+  'icon' => 'hosting.svg',
+  'tagline' => 'Fast, managed web hosting',
+  'headline' => 'Reliable hosting for your websites',
+  'accent' => 'shared, WordPress, and cloud plans',
+  'description' => 'Hosting provides managed web hosting for business sites, WordPress, and multi-domain setups — with SSL, backups, and one-click tools.',
+  'benefits' => 
+  [
+    0 => 
+    [
+      'title' => 'Plans for every stage',
+      'text' => 'Single-domain, multi-domain, WordPress, and reseller options.',
+    ,]
+    1 => 
+    [
+      'title' => 'Free SSL included',
+      'text' => 'Secure every site with automatic HTTPS.',
+    ,]
+    2 => 
+    [
+      'title' => 'Managed & monitored',
+      'text' => '99.9% uptime with 24/7 platform support.',
+    ,]
+  ,]
+  'use_cases' => 
+  [
+    0 => 'Business websites',
+    1 => 'WordPress blogs',
+    2 => 'Agency client hosting',
+  ,]
+  'gradient_from' => '#1c75bc',
+  'gradient_to' => '#010c1f',
+  'dashboard_route' => 'hosting.dashboard',
+  'platform_url' => 'https://localhost',
+  'marketing_url' => 'https://localhost/products/hosting',
+  'register_url' => 'https://auth.localhost/register',
+  'landing_variant' => 'default',
+];