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.

app/Models/User.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Models;
+
+// use Illuminate\Contracts\Auth\MustVerifyEmail;
+use Database\Factories\UserFactory;
+use Illuminate\Database\Eloquent\Attributes\Fillable;
+use Illuminate\Database\Eloquent\Attributes\Hidden;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Foundation\Auth\User as Authenticatable;
+use Illuminate\Notifications\Notifiable;
+
+#[Fillable(['name', 'email', 'password'])]
+#[Hidden(['password', 'remember_token'])]
+class User extends Authenticatable
+{
+    /** @use HasFactory<UserFactory> */
+    use HasFactory, Notifiable;
+
+    /**
+     * Get the attributes that should be cast.
+     *
+     * @return array<string, string>
+     */
+    protected function casts(): array
+    {
+        return [
+            'email_verified_at' => 'datetime',
+            'password' => 'hashed',
+        ];
+    }
+}