feat: extract MediaController, wire into Dispatcher, delete media.php

app/src/Controllers/LicenceController.php

@@ -0,0 +1,36 @@
+<?php
+require_once APP_ROOT . '/src/Database.php';
+require_once APP_ROOT . '/src/Parsedown.php';
+
+class LicenceController {
+    public static function create(): self {
+        return new self();
+    }
+
+    public function handle(): array {
+        try {
+            $db = Database::getInstance();
+            $dbPage = $db->getPage('licenses');
+            $content = $dbPage ? $dbPage['content'] : '';
+            $pageTitle = $dbPage ? $dbPage['title'] : 'Licences';
+        } catch (Exception $e) {
+            error_log("Error loading licence page: " . $e->getMessage());
+            $content = '';
+            $pageTitle = 'Licences';
+        }
+
+        $pd = new Parsedown();
+        $pd->setSafeMode(true);
+        $html = $pd->text($content);
+
+        return [
+            'content'          => $content,
+            'html'             => $html,
+            'pageTitle'        => $pageTitle . ' – Posterg',
+            'metaDescription'  => "Informations sur les licences d'utilisation des mémoires publiés sur Posterg, le répertoire des TFE de l'erg.",
+            'currentNav'       => 'licence',
+            'extraCss'         => ['/assets/css/apropos.css'],
+            'bodyClass'        => 'apropos-body',
+        ];
+    }
+}