Toolvana: production-ready media tools platform (CodeIgniter 4)

- 134-tool registry with programmatic SEO (unique titles/H1/descriptions,
  JSON-LD graphs, sitemap index, canonical 301 enforcement via required filter)
- DB-backed job queue (SKIP LOCKED) with drivers: Ffmpeg, Images (GD),
  Pdf (qpdf/gs/poppler), Youtube (thumbnails), Qr (server-side PNG)
- Security: SSRF guard, MIME validation, rate limits, API-key auth,
  bcrypt admin login, security headers
- Admin panel: dashboard, tools/categories/guides CRUD, SEO audit,
  analytics, job inspector with retry, system health, feature flags
- Docker deployment (nginx + web/api FPM pools + scalable workers),
  PHPUnit suite (19 tests / 1139 assertions), PWA manifest + service worker

app/Controllers/Api/Youtube.php

@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Controllers\Api;
+
+use App\Controllers\BaseController;
+use App\Libraries\Pipeline\Youtube as YoutubeLib;
+
+/**
+ * Instant YouTube URL analysis used by the paste-a-link UX: returns
+ * oEmbed metadata + thumbnail candidates before any job is queued.
+ */
+final class Youtube extends BaseController
+{
+    public function info(): \CodeIgniter\HTTP\ResponseInterface
+    {
+        $payload = $this->request->getJSON(true) ?: $this->request->getPost();
+        $url     = (string) ($payload['url'] ?? '');
+
+        $videoId = YoutubeLib::extractId($url);
+        if ($videoId === null) {
+            return response()->setStatusCode(422)->setJSON([
+                'ok' => false, 'error' => 'invalid_url',
+                'message' => 'Invalid YouTube URL. Paste a link like https://www.youtube.com/watch?v=…',
+            ]);
+        }
+
+        service('analytics')->track('tool_start', ['tool' => 'youtube-url-analyzer']);
+
+        return response()->setJSON([
+            'ok'         => true,
+            'id'         => $videoId,
+            'watch_url'  => 'https://www.youtube.com/watch?v=' . $videoId,
+            'embed_url'  => 'https://www.youtube-nocookie.com/embed/' . $videoId,
+            'thumbnails' => [
+                ['label' => 'Max resolution', 'url' => "https://i.ytimg.com/vi/{$videoId}/maxresdefault.jpg"],
+                ['label' => 'Standard',       'url' => "https://i.ytimg.com/vi/{$videoId}/sddefault.jpg"],
+                ['label' => 'High quality',   'url' => "https://i.ytimg.com/vi/{$videoId}/hqdefault.jpg"],
+                ['label' => 'Medium',         'url' => "https://i.ytimg.com/vi/{$videoId}/mqdefault.jpg"],
+            ],
+            'info' => YoutubeLib::fetchInfo($videoId),
+        ]);
+    }
+}