Add live search to admin licenses overview

- Add AJAX handler for real-time license search
- Create admin-licenses.js with debounced search and keyboard navigation
- Display search results with highlighted matches
- Support navigation with arrow keys and Enter to select
- Add CSS for dropdown results styling

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

src/Admin/AdminController.php

@@ -52,6 +52,9 @@ final class AdminController
 
         // Add to WooCommerce Reports
         add_filter('woocommerce_admin_reports', [$this, 'addLicenseReports']);
+
+        // AJAX handler for live search
+        add_action('wp_ajax_wclp_live_search', [$this, 'handleLiveSearch']);
     }
 
     /**
@@ -108,6 +111,67 @@ final class AdminController
             [],
             WC_LICENSED_PRODUCT_VERSION
         );
+
+        // Enqueue live search script on licenses page
+        if ($isLicensePage) {
+            wp_enqueue_script(
+                'wc-licensed-product-admin',
+                WC_LICENSED_PRODUCT_PLUGIN_URL . 'assets/js/admin-licenses.js',
+                ['jquery'],
+                WC_LICENSED_PRODUCT_VERSION,
+                true
+            );
+
+            wp_localize_script('wc-licensed-product-admin', 'wclpAdmin', [
+                'ajaxUrl' => admin_url('admin-ajax.php'),
+                'nonce' => wp_create_nonce('wclp_live_search'),
+                'strings' => [
+                    'noResults' => __('No licenses found', 'wc-licensed-product'),
+                    'searching' => __('Searching...', 'wc-licensed-product'),
+                    'error' => __('Search failed', 'wc-licensed-product'),
+                ],
+            ]);
+        }
+    }
+
+    /**
+     * Handle AJAX live search request
+     */
+    public function handleLiveSearch(): void
+    {
+        check_ajax_referer('wclp_live_search', 'nonce');
+
+        if (!current_user_can('manage_woocommerce')) {
+            wp_send_json_error(['message' => __('Permission denied.', 'wc-licensed-product')], 403);
+        }
+
+        $search = isset($_GET['search']) ? sanitize_text_field($_GET['search']) : '';
+
+        if (strlen($search) < 2) {
+            wp_send_json_success(['results' => []]);
+        }
+
+        $filters = ['search' => $search];
+        $licenses = $this->licenseManager->getAllLicenses(1, 10, $filters);
+
+        $results = [];
+        foreach ($licenses as $license) {
+            $product = wc_get_product($license->getProductId());
+            $customer = get_userdata($license->getCustomerId());
+
+            $results[] = [
+                'id' => $license->getId(),
+                'license_key' => $license->getLicenseKey(),
+                'domain' => $license->getDomain(),
+                'status' => $license->getStatus(),
+                'product_name' => $product ? $product->get_name() : __('Unknown', 'wc-licensed-product'),
+                'customer_name' => $customer ? $customer->display_name : __('Guest', 'wc-licensed-product'),
+                'customer_email' => $customer ? $customer->user_email : '',
+                'view_url' => admin_url('admin.php?page=wc-licenses&s=' . urlencode($license->getLicenseKey())),
+            ];
+        }
+
+        wp_send_json_success(['results' => $results]);
     }
 
     /**