清 single/home 残层：删 sidebar prepend 与 author-bar query-var

去掉 generic sidebar 的 prepend patch、author-bar ambient 回退，
以及 homepage section 多余 wrapper，保持主线闭环更干净。

templates/parts/single-author-bar.php

@@ -2,8 +2,7 @@
 /**
  * Shared author info bar for single post content.
  *
- * Prefer explicit $args (third arg of get_template_part).
- * Ambient query-var fallback is kept only for residual callers.
+ * Contract: get_template_part(..., null, $args)
  *
  * @package AKSRT
  */
@@ -11,18 +10,10 @@
 defined('ABSPATH') || exit;
 
 $args = is_array($args ?? null) ? $args : [];
-
-$extra_class = (string) ($args['extra_class'] ?? get_query_var('aksrt_author_bar_class', ''));
-$show_actions = array_key_exists('show_actions', $args)
-	? (bool) $args['show_actions']
-	: (bool) get_query_var('aksrt_author_bar_actions', false);
-$show_bio = array_key_exists('show_bio', $args)
-	? (bool) $args['show_bio']
-	: (bool) get_query_var('aksrt_author_bar_bio', false);
-$meta_items = array_key_exists('meta_items', $args)
-	? $args['meta_items']
-	: get_query_var('aksrt_author_bar_meta_items', []);
-$meta_items = is_array($meta_items) ? array_values(array_filter($meta_items, static function ($meta_item) {
+$extra_class = (string) ($args['extra_class'] ?? '');
+$show_actions = !empty($args['show_actions']);
+$show_bio = !empty($args['show_bio']);
+$meta_items = is_array($args['meta_items'] ?? null) ? array_values(array_filter($args['meta_items'], static function ($meta_item) {
 	if (is_array($meta_item)) {
 		return !empty($meta_item['text']);
 	}