Initial commit: Laravel scaffold + Common Crawl site indexing

Adds Site/SitePage models and the crawlindex:fetch command, which pulls
CDX index records from Common Crawl and optionally enriches them with
page title/description/keywords/body text extracted from the WARC
archive. CDX/WARC access and the site/page upsert logic live in
CommonCrawlIndexService and WarcRecordFetcher.

routes/console.php

@@ -0,0 +1,8 @@
+<?php
+
+use Illuminate\Foundation\Inspiring;
+use Illuminate\Support\Facades\Artisan;
+
+Artisan::command('inspire', function () {
+    $this->comment(Inspiring::quote());
+})->purpose('Display an inspiring quote');