fix(single): place the video footer breadcrumb like the reference

Drop the invented .post-breadcrumbs wrapper and echo the breadcrumb
inside the reference's flex jsb at row; split .single-video .breadcrumb
out of the cover-overlay rule (-6px pull and opacity reset belong to
title-over-cover contexts only) and restore the legacy 15px footer
padding. Pin the structure in the cover contract test and rebuild the
homepage aggregates.

inc/helpers/aksrt-single-render.php

@@ -38,9 +38,9 @@ if (!function_exists('aksrt_single_render_cover')) :
 						<div class="aksrt-video single-cover__player" data-aksrt-video data-src="<?php echo esc_url($ctx['cover_url']); ?>"<?php echo $poster !== '' ? ' data-poster="' . esc_url($poster) . '"' : ''; ?> style="position:absolute;inset:0;width:100%;height:100%;"></div>
 					</div>
 					<div class="single-video-footer dplayer-featured">
-						<?php if ($crumbs !== '') : ?>
-							<div class="post-breadcrumbs"><?php echo $crumbs; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?></div>
-						<?php endif; ?>
+						<div class="flex jsb at">
+							<?php echo $crumbs; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>
+						</div>
 						<h1 class="article-title">
 							<?php
 							$episodes = is_array($ctx['video_episodes'] ?? null) ? $ctx['video_episodes'] : [];