Implement version 0.0.3 features

- Add file attachment support for product versions (Media Library)
- Add version auto-detection from uploaded filenames
- Implement secure customer downloads with hash verification
- Add license key copy-to-clipboard functionality
- Redesign customer licenses page with card-based UI
- Fix product versions meta box visibility for non-licensed types
- Add DownloadController for secure file delivery
- Update CLAUDE.md roadmap and session history

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/Plugin.php

@@ -15,6 +15,7 @@ use Jeremias\WcLicensedProduct\Api\RestApiController;
 use Jeremias\WcLicensedProduct\Checkout\CheckoutController;
 use Jeremias\WcLicensedProduct\Email\LicenseEmailController;
 use Jeremias\WcLicensedProduct\Frontend\AccountController;
+use Jeremias\WcLicensedProduct\Frontend\DownloadController;
 use Jeremias\WcLicensedProduct\License\LicenseManager;
 use Jeremias\WcLicensedProduct\Product\LicensedProductType;
 use Jeremias\WcLicensedProduct\Product\VersionManager;
@@ -46,6 +47,11 @@ final class Plugin
      */
     private VersionManager $versionManager;
 
+    /**
+     * Download controller
+     */
+    private DownloadController $downloadController;
+
     /**
      * Get singleton instance
      */
@@ -103,7 +109,8 @@ final class Plugin
         // Initialize controllers
         new LicensedProductType();
         new CheckoutController($this->licenseManager);
-        new AccountController($this->twig, $this->licenseManager);
+        $this->downloadController = new DownloadController($this->licenseManager, $this->versionManager);
+        new AccountController($this->twig, $this->licenseManager, $this->versionManager, $this->downloadController);
         new RestApiController($this->licenseManager);
         new LicenseEmailController($this->licenseManager);