Fix blur effect, implement skeleton loading, and add Duolingo JWT friend streak feature

sidebar.php

@@ -564,16 +564,17 @@ $author_desc = get_option('argon_sidebar_author_description');
 												var headIndexInstance = $(document).data('headIndex');
 												
 												// 添加额外的滚动监听，确保目录跟随
-												var scrollTimer = null;
+												var scrollTicking = false;
 												$(window).on('scroll.desktopCatalog', function() {
-													if (scrollTimer) {
-														clearTimeout(scrollTimer);
+													if (!scrollTicking) {
+														scrollTicking = true;
+														requestAnimationFrame(function() {
+															if (headIndexInstance && typeof headIndexInstance.updateCurrent === 'function') {
+																headIndexInstance.updateCurrent();
+															}
+															scrollTicking = false;
+														});
 													}
-													scrollTimer = setTimeout(function() {
-														if (headIndexInstance && typeof headIndexInstance.updateCurrent === 'function') {
-															headIndexInstance.updateCurrent();
-														}
-													}, 100);
 												});
 												
 												// PJAX 后重新绑定
@@ -663,8 +664,10 @@ $author_desc = get_option('argon_sidebar_author_description');
 									$duo_data = argon_get_duolingo_data();
 									if ($duo_data !== false) : 
 										$is_today_done = isset($duo_data['today']) && $duo_data['today'];
+										$duo_friend_streak = isset($duo_data['friend_streak']) ? $duo_data['friend_streak'] : '';
+										$tooltip_attr = !empty($duo_friend_streak) ? ' data-toggle="tooltip" data-placement="bottom" title="' . esc_attr(sprintf(__('友情连胜: %s天', 'argon'), $duo_friend_streak)) . '"' : '';
 									?>
-								<span class="duolingo-streak<?php echo $is_today_done ? '' : ' not-done'; ?>">
+								<span class="duolingo-streak<?php echo $is_today_done ? '' : ' not-done'; ?>"<?php echo $tooltip_attr; ?>>
 									<img src="<?php echo get_template_directory_uri(); ?>/assets/icons/duolingo-streak<?php echo $is_today_done ? '' : '-empty'; ?>.svg" class="duolingo-flame" alt="streak">
 									<?php echo $duo_data['streak']; ?>
 								</span>