Initial baseline: LaraBlog core with plugin commerce surface.

Captures the current working tree after theme slots, ArticleAccess, and the payment / paid-content plugins so subsequent work has a reviewable git history.

app/Http/Controllers/LegacyGoneController.php

@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Response;
+
+class LegacyGoneController extends Controller
+{
+    public function __invoke(): Response
+    {
+        return response(
+            'This legacy endpoint is gone (Trackback/WAP/old admin are not supported).',
+            410,
+            ['Content-Type' => 'text/plain; charset=UTF-8']
+        );
+    }
+}