feat(support-pin): daily-rotating PIN via HMAC(token, date)

PIN is derived from HMAC-SHA256(health_api_token, YYYY-MM-DD) so both
client and HQ compute the same value independently. Rotates at UTC
midnight. Shown on cpanel module header and component dashboard.

source/packages/com_mokosuiteclient/admin/src/View/Dashboard/HtmlView.php

@@ -26,6 +26,7 @@ class HtmlView extends BaseHtmlView
 	protected $wafChartData = [];
 	protected $loginChartData = [];
 	protected $mokoExtensions = [];
+	public $supportPin = '';
 
 	public function display($tpl = null)
 	{
@@ -33,6 +34,28 @@ class HtmlView extends BaseHtmlView
 
 		$this->plugins         = $model->getFeaturePlugins();
 		$this->siteInfo        = $model->getSiteInfo();
+
+		// Daily support PIN from health token
+		try
+		{
+			$db = \Joomla\CMS\Factory::getDbo();
+			$db->setQuery(
+				$db->getQuery(true)
+					->select($db->quoteName('params'))
+					->from($db->quoteName('#__extensions'))
+					->where($db->quoteName('element') . ' = ' . $db->quote('mokosuiteclient'))
+					->where($db->quoteName('type') . ' = ' . $db->quote('plugin'))
+					->where($db->quoteName('folder') . ' = ' . $db->quote('system'))
+			);
+			$token = (json_decode((string) $db->loadResult()))->health_api_token ?? '';
+
+			if (!empty($token))
+			{
+				$hash = hash_hmac('sha256', gmdate('Y-m-d'), $token);
+				$this->supportPin = 'MOKO-' . strtoupper(substr($hash, 0, 4)) . '-' . strtoupper(substr($hash, 4, 4));
+			}
+		}
+		catch (\Throwable $e) {}
 		$this->recentLogins    = $model->getRecentLogins(5);
 		$this->pendingUpdates  = $model->getPendingUpdates();
 		$this->checkedOutItems = $model->getCheckedOutItems();

source/packages/com_mokosuiteclient/admin/tmpl/dashboard/default.php

@@ -48,6 +48,12 @@ $categoryOrder = ['core', 'security', 'monitoring', 'content', 'tools', 'api'];
 				<span class="mokosuiteclient-info-label">MokoSuiteClient</span>
 				<span class="mokosuiteclient-info-value"><span class="badge bg-primary"><?php echo $this->escape($siteInfo->mokosuiteclient_version); ?></span></span>
 			</div>
+			<?php if (!empty($this->supportPin)): ?>
+			<div class="mokosuiteclient-info-item">
+				<span class="mokosuiteclient-info-label">Support PIN</span>
+				<span class="mokosuiteclient-info-value"><span class="badge bg-dark" style="font-family:monospace;letter-spacing:0.08em;cursor:help;" title="Daily verification PIN — rotates at midnight UTC. Ask your provider for this code to verify identity."><span class="icon-key small me-1" aria-hidden="true"></span><?php echo $this->escape($this->supportPin); ?></span></span>
+			</div>
+			<?php endif; ?>
 			<div class="mokosuiteclient-info-item">
 				<span class="mokosuiteclient-info-label">Joomla</span>
 				<span class="mokosuiteclient-info-value"><span class="badge bg-secondary"><?php echo $this->escape($siteInfo->joomla_version); ?></span></span>

source/packages/mod_mokosuiteclient_cpanel/src/Dispatcher/Dispatcher.php

@@ -47,7 +47,7 @@ class Dispatcher extends AbstractModuleDispatcher implements HelperFactoryAwareI
 		$data['currentIp']  = $helper->getCurrentIp();
 		$data['ssl']        = $helper->getSslStatus();
 
-		// Support PIN derived from health token
+		// Daily support PIN derived from health token + today's date (UTC)
 		$data['supportPin'] = '';
 
 		try
@@ -65,7 +65,9 @@ class Dispatcher extends AbstractModuleDispatcher implements HelperFactoryAwareI
 
 			if (!empty($token))
 			{
-				$data['supportPin'] = 'MOKO-' . strtoupper(substr($token, 0, 4) . '-' . substr($token, 4, 4));
+				$date = gmdate('Y-m-d');
+				$hash = hash_hmac('sha256', $date, $token);
+				$data['supportPin'] = 'MOKO-' . strtoupper(substr($hash, 0, 4)) . '-' . strtoupper(substr($hash, 4, 4));
 			}
 		}
 		catch (\Throwable $e) {}