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/Domain/Theme/RegistersSnippetSlots.php

@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Domain\Theme;
+
+use App\Domain\Plugin\Hook;
+use App\Settings\SnippetSettings;
+use Throwable;
+
+final class RegistersSnippetSlots
+{
+    public static function boot(): void
+    {
+        try {
+            $snippets = app(SnippetSettings::class);
+            $map = $snippets->slotMap();
+        } catch (Throwable) {
+            // Settings group may be missing until migrations finish.
+            return;
+        }
+
+        foreach ($map as $slot => $html) {
+            if (! is_string($html) || trim($html) === '') {
+                continue;
+            }
+
+            $payload = $html;
+            Hook::listen(ThemeSlot::event($slot), function (string $buffer) use ($payload): string {
+                return $buffer.$payload;
+            });
+        }
+    }
+}