Add dashboard widget and auto-expire license cron (v0.3.5)

- Add admin dashboard widget with license statistics
- Add daily wp-cron to auto-expire licenses past expiration date
- Add LicenseExpiredEmail notification for expired licenses
- Add getExpiredActiveLicenses() and autoExpireLicense() to LicenseManager

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

CHANGELOG.md

@@ -9,6 +9,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [0.3.5] - 2026-01-23
 
+### Added
+
+- Admin dashboard widget showing license statistics on WordPress dashboard
+- Automatic license expiration via daily wp-cron job
+- License expired email notification sent when license auto-expires
+- New `LicenseExpiredEmail` WooCommerce email class (configurable via WooCommerce > Settings > Emails)
+
 ### Changed
 
 - Improved download list layout in customer account licenses page
@@ -17,6 +24,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Technical Details
 
+- New `DashboardWidgetController` class in `src/Admin/` for WordPress dashboard widget
+- Widget displays: total licenses, active, expiring soon, expired counts, status breakdown, license types
+- New `LicenseExpiredEmail` class in `src/Email/` for expired license notifications
+- Added `getExpiredActiveLicenses()` and `autoExpireLicense()` methods to `LicenseManager`
+- Daily cron now auto-expires licenses with past expiration date and sends notification emails
 - Updated `templates/frontend/licenses.html.twig` with new two-row structure
 - Added `.download-item`, `.download-row-file`, `.download-row-meta` CSS classes
 - Improved responsive behavior for download metadata