feat(links): move friend links to native WordPress links with review flow

- enable the native Links manager and drop the custom friend-link option/REST path
- add per-page link settings for the friends template
- render link categories from get_bookmarks() with search and page-content options
- add a validated public link submission endpoint with logo upload, captcha, rate limiting and duplicate checks
- create pending links for review and notify administrators by email and in-app message
- add native Links admin pending count, columns and edit notes
- cover the new submission and cleanup contracts

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

inc/helpers/jio-links.php

@@ -84,14 +84,14 @@ if (!function_exists('jio_get_page_links_settings')) :
 			'order'            => $order,
 			'go_s'             => (bool) get_post_meta($post_id, 'page_links_go_s', true),
 			'blank_s'          => (bool) get_post_meta($post_id, 'page_links_blank_s', true),
-			// Default nofollow ON (legacy default true).
-			'nofollow_s'       => get_post_meta($post_id, 'page_links_nofollow_s', true) === ''
-				? true
-				: (bool) get_post_meta($post_id, 'page_links_nofollow_s', true),
+			// Default nofollow ON unless the page meta explicitly turns it off.
+			'nofollow_s'       => metadata_exists('post', $post_id, 'page_links_nofollow_s')
+				? (bool) get_post_meta($post_id, 'page_links_nofollow_s', true)
+				: true,
 			'submit_s'         => (bool) get_post_meta($post_id, 'page_links_submit_s', true),
-			'submit_sign_s'    => get_post_meta($post_id, 'page_links_submit_sign_s', true) === ''
-				? true
-				: (bool) get_post_meta($post_id, 'page_links_submit_sign_s', true),
+			'submit_sign_s'    => metadata_exists('post', $post_id, 'page_links_submit_sign_s')
+				? (bool) get_post_meta($post_id, 'page_links_submit_sign_s', true)
+				: true,
 			'submit_cats'      => $submit_cats,
 			'submit_title'     => (string) (get_post_meta($post_id, 'page_links_submit_title', true) ?: __('申请入驻', 'jio')),
 			'submit_dec'       => (string) get_post_meta($post_id, 'page_links_submit_dec', true),
@@ -393,11 +393,11 @@ endif;
 
 if (!function_exists('jio_submit_links_modal')) :
 	/**
-	 * Frontend submit modal markup (legacy).
+	 * Frontend link submission modal.
 	 *
 	 * @param array{title?:string,dec?:string,sign?:bool,cats?:int[]} $args
 	 */
-	function jio_submit_links_modal(array $args = []): string {
+	function jio_submit_links_modal(array $args = [], int $post_id = 0): string {
 		$defaults = [
 			'title' => __('申请入驻', 'jio'),
 			'dec'   => '',
@@ -405,6 +405,7 @@ if (!function_exists('jio_submit_links_modal')) :
 			'cats'  => [],
 		];
 		$args  = array_merge($defaults, $args);
+		$post_id = $post_id > 0 ? $post_id : (int) get_queried_object_id();
 		$title = (string) $args['title'];
 		$header = $title !== ''
 			? '<div class="mb20"><button type="button" class="close" data-dismiss="modal" aria-label="' . esc_attr__('关闭', 'jio') . '">'
@@ -453,7 +454,7 @@ if (!function_exists('jio_submit_links_modal')) :
 				: '';
 
 			$placeholder_upload = get_template_directory_uri() . '/assets/img/placeholder.svg';
-			$body .= '<form class="form-horizontal mt10 form-upload jio-links-submit-form" enctype="multipart/form-data">';
+			$body .= '<form class="form-horizontal mt10 jio-links-submit-form" action="' . esc_url(admin_url('admin-ajax.php')) . '" method="post" enctype="multipart/form-data">';
 			$body .= '<div class="row gutters-5">';
 			$body .= '<div class="col-sm-6 mb10"><div class="em09 muted-2-color mb6">' . esc_html__('网站名称（必填）', 'jio') . '</div>'
 				. '<input type="text" class="form-control" name="link_name" required placeholder="' . esc_attr__('请输入网站名称', 'jio') . '"></div>';
@@ -468,11 +469,18 @@ if (!function_exists('jio_submit_links_modal')) :
 				. '<input class="hide jio-links-logo-input" type="file" accept="image/gif,image/jpeg,image/jpg,image/png" name="image"></label>'
 				. '<div class="px12 muted-2-color mb6">' . esc_html__('请选择正方形 LOGO，支持 jpg/png/gif', 'jio') . '</div></div>';
 			$body .= '</div>';
+			if (function_exists('jio_render_captcha')) {
+				ob_start();
+				jio_render_captcha('friend_link');
+				$body .= (string) ob_get_clean();
+			}
+			$body .= '<div class="jio-links-submit-status" role="status" aria-live="polite"></div>';
 			$body .= '<div class="text-right edit-footer">'
 				. '<button type="submit" class="but c-blue padding-lg jio-links-submit-btn"><i class="fa fas fa-check" aria-hidden="true"></i>'
 				. esc_html__('确认提交', 'jio') . '</button></div>';
-			$body .= wp_nonce_field('jio_frontend_links_submit', '_wpnonce', false, false);
+			$body .= wp_nonce_field('jio_frontend_links_submit_' . $post_id, '_wpnonce', false, false);
 			$body .= '<input type="hidden" name="action" value="jio_frontend_links_submit">';
+			$body .= '<input type="hidden" name="page_id" value="' . (int) $post_id . '">';
 			$body .= '</form>';
 		}
 

inc/helpers/template-tags/media-brand.php

@@ -10,24 +10,6 @@ defined('ABSPATH') || exit;
 // 模板标签：友情链接
 // ============================================================
 
-if (!function_exists('jio_get_friend_links')):
-/**
- * 获取友情链接列表（已激活的）
- *
- * @return array
- */
-function jio_get_friend_links() {
-    if (class_exists('\Jio\Settings\Settings')) {
-        return \Jio\Settings\Settings::get_friend_links();
-    }
-
-    $links = get_option('jio_friend_links', array());
-    return array_values(array_filter($links, function($l) {
-        return !empty($l['active']);
-    }));
-}
-endif;
-
 // ============================================================
 // 模板标签：站点 Logo / Favicon / About
 // ============================================================

inc/modules/captcha.php

@@ -377,6 +377,7 @@ function jio_captcha_scenes(): array {
 		'tip_user'          => __('打赏用户', 'jio'),
 		'ticket_create'     => __('提交工单', 'jio'),
 		'ticket_reply'      => __('回复工单', 'jio'),
+		'friend_link'       => __('友情链接申请', 'jio'),
 	];
 }