fix(yiyan): stop invalid Hitokoto category requests

Public hitokoto v1 rejects c=hitokoto (and ignores batch count). Whitelist
categories a–l, multi-fetch for carousel, and share full markup via
aksrt_render_yiyan_block so single-post shells actually render quotes.

inc/helpers/aksrt-single-render.php

@@ -313,7 +313,11 @@ if (!function_exists('aksrt_single_render_content_footer')) :
 		$post_id = (int) $ctx['post_id'];
 		?>
 		<?php if (!empty($settings['yiyan_footer'])) : ?>
-			<div class="article-yiyan yiyan-box aksrt-yiyan yiyan--footer" data-aksrt-yiyan data-type="hitokoto"></div>
+			<?php
+			aksrt_render_yiyan_block([
+				'class' => 'article-yiyan yiyan-box aksrt-yiyan yiyan--footer',
+			]);
+			?>
 		<?php endif; ?>
 
 		<?php if (!empty($settings['copyright_enabled'])) : ?>
@@ -855,7 +859,11 @@ if (!function_exists('aksrt_single_render_article')) :
 
 			<div class="article-content">
 				<?php if (!empty($settings['yiyan_header'])) : ?>
-					<div class="article-yiyan yiyan-box aksrt-yiyan yiyan--header theme-box text-center radius8 main-shadow" data-aksrt-yiyan data-type="hitokoto"></div>
+					<?php
+					aksrt_render_yiyan_block([
+						'class' => 'article-yiyan yiyan-box aksrt-yiyan yiyan--header theme-box text-center radius8 main-shadow',
+					]);
+					?>
 				<?php endif; ?>
 
 				<?php do_action('aksrt_single_content_before', get_post()); ?>
@@ -910,9 +918,9 @@ if (!function_exists('aksrt_single_render_after_box')) :
 		$settings = is_array($ctx['settings'] ?? null) ? $ctx['settings'] : [];
 
 		if (!empty($settings['yiyan_box'])) {
-			?>
-			<div class="yiyan-box main-bg theme-box text-center box-body radius8 main-shadow aksrt-yiyan" data-aksrt-yiyan data-type="hitokoto"></div>
-			<?php
+			aksrt_render_yiyan_block([
+				'class' => 'yiyan-box main-bg theme-box text-center box-body radius8 main-shadow aksrt-yiyan',
+			]);
 		}
 
 		// Accept both `authordesc` (Settings DTO) and legacy `authordesc_s`.