Implement version 0.0.11 features

- Add Created date column to admin license overview
- Add License Statistics page under WooCommerce menu
- Add REST API endpoints for analytics data with time-series support
- WooCommerce Analytics integration via submenu page

New files:
- src/Admin/AnalyticsController.php
- templates/admin/statistics.html.twig

REST API endpoints:
- GET /wc-licensed-product/v1/analytics/stats
- GET /wc-licensed-product/v1/analytics/products

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

templates/admin/licenses.html.twig

@@ -95,6 +95,7 @@
                     <th>{{ __('Customer') }}</th>
                     <th>{{ __('Domain') }}</th>
                     <th>{{ __('Status') }}</th>
+                    <th>{{ __('Created') }}</th>
                     <th>{{ __('Expires') }}</th>
                     <th>{{ __('Actions') }}</th>
                 </tr>
@@ -102,7 +103,7 @@
             <tbody>
                 {% if licenses is empty %}
                     <tr>
-                        <td colspan="8">{{ __('No licenses found.') }}</td>
+                        <td colspan="9">{{ __('No licenses found.') }}</td>
                     </tr>
                 {% else %}
                     {% for item in licenses %}
@@ -160,6 +161,9 @@
                                     <button type="button" class="wclp-cancel-btn button button-small">{{ __('Cancel') }}</button>
                                 </div>
                             </td>
+                            <td class="wclp-created-cell">
+                                {{ item.license.createdAt|date('Y-m-d') }}
+                            </td>
                             <td class="wclp-editable-cell" data-field="expiry" data-license-id="{{ item.license.id }}">
                                 <span class="wclp-display-value">
                                     {% if item.license.expiresAt %}
@@ -219,6 +223,7 @@
                     <th>{{ __('Customer') }}</th>
                     <th>{{ __('Domain') }}</th>
                     <th>{{ __('Status') }}</th>
+                    <th>{{ __('Created') }}</th>
                     <th>{{ __('Expires') }}</th>
                     <th>{{ __('Actions') }}</th>
                 </tr>