GG.deals clone: CodeIgniter 4 + MongoDB game price tracker

- Full gg.deals-style UI: deal feed with filters, game pages with price
  history charts, rankings, vouchers, news, prepaids, subscriptions,
  bundles, franchises, wishlist, API docs
- Real data crawlers:
  * gg:crawl (Steam Store API + GOG Catalog + Epic free games)
  * gg:catalog (252K game slugs from gg.deals sitemaps)
  * gg:ggdeals (per-game prices via FlareSolverr session, JSON-LD parsing)
  * gg:seed / gg:crawl-covers (demo seed + Steam CDN cover art)
- 24/7 self-updating scheduler (scripts/scheduler_loop.php, lockfile-protected)
- Tailwind v4 dark/light theme, Alpine.js, Chart.js

app/Controllers/Wishlist.php

@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Controllers;
+
+use App\Models\GameModel;
+use CodeIgniter\Controller;
+
+class Wishlist extends Controller
+{
+    public function index(): string
+    {
+        // wishlist slugs come from localStorage client-side; the page shows
+        // the JS-powered collection with an optional server fetch fallback.
+        $data = [
+            'pageTitle' => 'Wishlist — GG.deals',
+        ];
+
+        return view('wishlist', $data);
+    }
+
+    /**
+     * JSON: fetch full game data for a list of slugs (used by the wishlist page).
+     */
+    public function data(): \CodeIgniter\HTTP\ResponseInterface
+    {
+        $slugs = (array) service('request')->getGet('slugs');
+
+        $games = [];
+        foreach (array_unique(array_filter($slugs)) as $slug) {
+            $g = (new GameModel())->findBySlug($slug);
+            if ($g !== null) {
+                $games[] = $g;
+            }
+        }
+
+        return service('response')->setJSON($games);
+    }
+}