chore: copy ep_products and ep_theme from EP/website@9593cc8

Copied unchanged from public/typo3conf/ext/ of EP/website at
9593cc8631354f8a363d6609de8b7433f669a9a0 (Git-tracked files only).
History stays in the old repository. Only composer.json files are
added so the extensions install as path packages.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

packages/ep_theme/Configuration/RequestMiddlewares.php

@@ -0,0 +1,12 @@
+<?php
+
+return [
+    'frontend' => [
+        'ep/referrer' => [
+            'target' => \EP\EpTheme\Middleware\ReferrerMiddleware::class,
+            'after' => [
+                'typo3/cms-frontend/site',
+            ],
+        ],
+    ],
+];