feat(widgets): phase 4 align user/author/slider widgets 1:1 with zibll

Align the 5 user/author/slider widgets with Zibll CSF widget
definitions in widget-user.php / widget-slider.php and
options-module.php (add_slider / slide / zib_palette):

- WidgetUserCard (widget_ui_user): add Zibll button palettes
  (button_1_class/button_2_class via new palette_opts()/
  sanitize_palette() replicating CFS_Module::zib_palette c/b/jb)
  and button_2 type (home/center) → profile/center URL.
- WidgetAuthorCard (widget_ui_avatar): add show_button +
  button_1/button_2 (class/text/type) rendered only when the
  logged-in viewer is the author (zibll parity); expand orderby
  to modified/like/favorite.
- WidgetUserRanking (zib_widget_ui_user_ranking): rename field
  to Zibll `orderby` (default checkin_all_day) with the exact
  4 dims (checkin_all_day/checkin_continuous_day/points→credits
  /followed-user-count→followers) + `number` (was count); keep
  rank_by/count aliases for legacy instances; reword desc
  options to match Zibll labels.
- WidgetSlider (zib_widget_ui_slider): add direction/speed/
  spacebetween/scale_height+scale/autoplay to form+update+render,
  pass through to aksrt_render_slider (effect/loop/button/
  pagination/pc·m_height/interval already present); widen
  interval min to 0, height default to 400 (zibll pc_height).
- aksrt_user_card_query_posts: support like/favorite orderby
  (meta _aksrt_like_count / _aksrt_favorite_count) so the
  author/user-card more-posts strip honors the expanded orderby.

Acceptance: php -l clean on all changed files; audit exit 0;
all widget files <=383 lines. Phase 4 done-when marked.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

inc/helpers/aksrt-user-card.php

@@ -51,6 +51,18 @@ if (!function_exists('aksrt_user_card_query_posts')) :
 				$query_args['orderby']  = 'meta_value_num';
 				$query_args['order']    = 'DESC';
 				break;
+			case 'like':
+			case 'likes':
+				$query_args['meta_key'] = '_aksrt_like_count';
+				$query_args['orderby']  = 'meta_value_num';
+				$query_args['order']    = 'DESC';
+				break;
+			case 'favorite':
+			case 'favorite_count':
+				$query_args['meta_key'] = '_aksrt_favorite_count';
+				$query_args['orderby']  = 'meta_value_num';
+				$query_args['order']    = 'DESC';
+				break;
 			case 'comment_count':
 			case 'comments':
 				$query_args['orderby'] = 'comment_count';