fix(report): unify the frontend report entry and modal

- enqueue report.js on singular pages too: the single meta box and
  comment report buttons rendered without their script handler, so
  clicking the report item did nothing
- align the report runtime default with the admin schema and the
  reference theme (user_report_s default true) so the public user
  home cover menu shows the report entry
- rebuild report.js on top of AksrtModalRuntime following the
  reference theme modal format: red warning header, preset reason
  badges with an other-reason textarea, violation link field, detail
  description and a cancel/submit footer; submit goes through the
  unified /report/submit endpoint
- keep report inside the comment three-dot dropdown and enrich the
  payload (target name/avatar) for the modal; inject configured
  report categories via aksrtData.reportCategories
- update the report contract test accordingly

inc/helpers/comments/item.php

@@ -147,6 +147,8 @@ if (!function_exists('aksrt_get_comment_report_html')) :
 	/**
 	 * 评论举报入口 — 登录用户可举报他人评论（前台走 report.js 的 data-aksrt-report 契约）。
 	 *
+	 * 举报位于“回复”右侧三点下拉菜单内（参考主题同位置）。
+	 *
 	 * @param WP_Comment $comment Comment.
 	 * @return string
 	 */
@@ -169,7 +171,14 @@ if (!function_exists('aksrt_get_comment_report_html')) :
 			return '';
 		}
 
-		return '<li><a class="comment-report-link" href="javascript:;" data-aksrt-report=\'{"target_type":"comment","target_id":' . (int) $comment->comment_ID . '}\'><i class="fa fas fa-flag mr10 fa-fw" aria-hidden="true"></i><text>' . esc_html__('举报', 'aksrt') . '</text></a></li>';
+		$report_payload = wp_json_encode([
+			'target_type'   => 'comment',
+			'target_id'     => (int) $comment->comment_ID,
+			'target_name'   => get_comment_author($comment),
+			'target_avatar' => get_avatar_url((int) $comment->user_id > 0 ? (int) $comment->user_id : 0, ['size' => 40]) ?: '',
+		]);
+
+		return '<li><a class="comment-report-link" href="javascript:;" data-aksrt-report="' . esc_attr((string) $report_payload) . '"><i class="fa fa-exclamation-triangle mr10 fa-fw c-red" aria-hidden="true"></i>' . esc_html__('举报', 'aksrt') . '</a></li>';
 	}
 endif;