feat: 优化多 API 管理和添加连通性测试

- 移除 AI 文章摘要的 h3 标题
- 多 API 管理显示所有提供商的 API 配置（不再只显示选中的）
- 为每个 API 配置添加测试按钮
- 实现 API 连通性测试功能（argon_test_api_connection）
- 测试功能显示响应时间和连接状态
- 优化界面布局，提升用户体验

functions.php

@@ -7896,6 +7896,88 @@ function argon_get_ai_models() {
 }
 add_action('wp_ajax_argon_get_ai_models', 'argon_get_ai_models');
 
+/**
+ * AJAX: 测试 API 连通性
+ */
+function argon_test_api_connection() {
+	check_ajax_referer('argon_test_api_connection', 'nonce');
+	
+	if (!current_user_can('manage_options')) {
+		wp_send_json_error(__('权限不足', 'argon'));
+	}
+	
+	$provider = sanitize_text_field($_POST['provider']);
+	$api_key = sanitize_text_field($_POST['api_key']);
+	$api_endpoint = sanitize_text_field($_POST['api_endpoint']);
+	$model = sanitize_text_field($_POST['model']);
+	
+	if (empty($api_key)) {
+		wp_send_json_error(__('API 密钥不能为空', 'argon'));
+	}
+	
+	// 记录开始时间
+	$start_time = microtime(true);
+	
+	// 测试提示词
+	$test_prompt = __('请回复"连接成功"', 'argon');
+	$test_content = __('测试', 'argon');
+	
+	// 根据不同服务商调用 API
+	$result = false;
+	try {
+		switch ($provider) {
+			case 'openai':
+				$result = argon_call_openai_api($api_key, $test_prompt, $test_content);
+				break;
+			case 'anthropic':
+				$result = argon_call_anthropic_api($api_key, $test_prompt, $test_content);
+				break;
+			case 'deepseek':
+				$result = argon_call_deepseek_api($api_key, $test_prompt, $test_content);
+				break;
+			case 'xiaomi':
+				$result = argon_call_xiaomi_api($api_key, $test_prompt, $test_content);
+				break;
+			case 'qianwen':
+				$result = argon_call_qianwen_api($api_key, $test_prompt, $test_content);
+				break;
+			case 'wenxin':
+				$result = argon_call_wenxin_api($api_key, $test_prompt, $test_content);
+				break;
+			case 'doubao':
+				$result = argon_call_doubao_api($api_key, $test_prompt, $test_content);
+				break;
+			case 'kimi':
+				$result = argon_call_kimi_api($api_key, $test_prompt, $test_content);
+				break;
+			case 'zhipu':
+				$result = argon_call_zhipu_api($api_key, $test_prompt, $test_content);
+				break;
+			case 'siliconflow':
+				$result = argon_call_siliconflow_api($api_key, $test_prompt, $test_content);
+				break;
+			default:
+				wp_send_json_error(__('不支持的服务商', 'argon'));
+		}
+	} catch (Exception $e) {
+		wp_send_json_error($e->getMessage());
+	}
+	
+	// 计算响应时间
+	$response_time = round((microtime(true) - $start_time) * 1000);
+	
+	if ($result !== false) {
+		wp_send_json_success([
+			'message' => __('连接成功', 'argon'),
+			'response_time' => $response_time,
+			'model' => $model
+		]);
+	} else {
+		wp_send_json_error(__('连接失败，请检查 API 密钥和网络连接', 'argon'));
+	}
+}
+add_action('wp_ajax_argon_test_api_connection', 'argon_test_api_connection');
+
 /**
  * AJAX: 添加 API 配置
  */

settings.php

@@ -1985,8 +1985,6 @@ function themeoptions_page(){
 					<!-- ========== 12. 文章功能 ========== -->
 					<tr><th class="subtitle"><h2 id="section-post-features"><?php _e('文章功能', 'argon');?></h2></th></tr>
 
-					<tr><th class="subtitle"><h3 id="subsection-ai-summary"><?php _e('AI 文章摘要', 'argon');?></h3></th></tr>
-
 					<tr>
 						<th><label><?php _e('启用 AI 文章摘要', 'argon');?></label></th>
 						<td>
@@ -2034,24 +2032,19 @@ function themeoptions_page(){
 						'siliconflow' => __('硅基流动 (SiliconFlow)', 'argon')
 					];
 					
-					$current_provider = get_option('argon_ai_summary_provider', 'openai');
+					// 显示所有提供商的 API 配置
-					
 					foreach ($providers as $provider_key => $provider_name) {
-						$is_current = ($provider_key === $current_provider);
-						$display_style = $is_current ? '' : 'display:none;';
-						
 						// 获取该提供商的所有 API 配置
 						$apis = argon_get_provider_apis($provider_key);
 						$active_api_id = get_option("argon_ai_{$provider_key}_active_api", '');
 					?>
 					
-					<tr class="argon-provider-config" data-provider="<?php echo esc_attr($provider_key); ?>" style="<?php echo $display_style; ?>">
+					<tr class="argon-provider-config" data-provider="<?php echo esc_attr($provider_key); ?>">
-						<th><label><?php echo esc_html($provider_name); ?> - <?php _e('API 配置', 'argon');?></label></th>
+						<th><label><?php echo esc_html($provider_name); ?></label></th>
 						<td>
 							<div class="argon-api-list" data-provider="<?php echo esc_attr($provider_key); ?>">
 								<?php if (!empty($apis)): ?>
 									<div style="margin-bottom: 15px;">
-										<strong><?php _e('已配置的 API:', 'argon'); ?></strong>
 										<div style="margin-top: 10px;">
 											<?php foreach ($apis as $index => $api): ?>
 												<div class="argon-api-item" style="padding: 10px; background: #f5f5f5; margin-bottom: 8px; border-radius: 4px;">
@@ -2075,10 +2068,17 @@ function themeoptions_page(){
 																<?php endif; ?>
 															</small>
 														</span>
-														<button type="button" class="button button-small argon-edit-api" 
+														<button type="button" class="button button-small argon-test-api" 
 															data-provider="<?php echo esc_attr($provider_key); ?>"
 															data-index="<?php echo esc_attr($index); ?>"
 															style="margin-left: 10px;">
+															<span class="dashicons dashicons-yes-alt" style="margin-top: 3px;"></span>
+															<?php _e('测试', 'argon'); ?>
+														</button>
+														<button type="button" class="button button-small argon-edit-api" 
+															data-provider="<?php echo esc_attr($provider_key); ?>"
+															data-index="<?php echo esc_attr($index); ?>"
+															style="margin-left: 5px;">
 															<?php _e('编辑', 'argon'); ?>
 														</button>
 														<button type="button" class="button button-small argon-delete-api" 
@@ -2188,11 +2188,61 @@ function themeoptions_page(){
 							</style>
 							<script>
 							jQuery(document).ready(function($) {
-								// 切换服务商时显示/隐藏对应配置
+								// 测试 API 连通性
-								$('#argon_ai_summary_provider').on('change', function() {
+								$(document).on('click', '.argon-test-api', function() {
-									var selectedProvider = $(this).val();
+									var btn = $(this);
-									$('.argon-provider-config').hide();
+									var provider = btn.data('provider');
-									$('.argon-provider-config[data-provider="' + selectedProvider + '"]').show();
+									var index = btn.data('index');
+									var apiList = $('.argon-api-list[data-provider="' + provider + '"]');
+									var apisData = JSON.parse(apiList.find('.argon-apis-data').val() || '[]');
+									
+									if (!apisData[index]) {
+										alert('<?php _e('API 配置不存在', 'argon'); ?>');
+										return;
+									}
+									
+									var api = apisData[index];
+									var originalHtml = btn.html();
+									
+									// 显示加载状态
+									btn.prop('disabled', true);
+									btn.html('<span class="dashicons dashicons-update spin" style="margin-top: 3px;"></span> <?php _e('测试中...', 'argon'); ?>');
+									
+									// 发送测试请求
+									$.post(ajaxurl, {
+										action: 'argon_test_api_connection',
+										nonce: '<?php echo wp_create_nonce('argon_test_api_connection'); ?>',
+										provider: provider,
+										api_key: api.api_key,
+										api_endpoint: api.api_endpoint || '',
+										model: api.model || ''
+									}, function(response) {
+										btn.prop('disabled', false);
+										btn.html(originalHtml);
+										
+										if (response.success) {
+											btn.html('<span class="dashicons dashicons-yes-alt" style="margin-top: 3px; color: #46b450;"></span> <?php _e('测试', 'argon'); ?>');
+											alert('<?php _e('连接成功！', 'argon'); ?>\n\n' + 
+												'<?php _e('响应时间:', 'argon'); ?> ' + response.data.response_time + 'ms\n' +
+												(response.data.model ? '<?php _e('模型:', 'argon'); ?> ' + response.data.model : ''));
+											setTimeout(function() {
+												btn.html(originalHtml);
+											}, 3000);
+										} else {
+											btn.html('<span class="dashicons dashicons-dismiss" style="margin-top: 3px; color: #dc3232;"></span> <?php _e('测试', 'argon'); ?>');
+											alert('<?php _e('连接失败！', 'argon'); ?>\n\n' + (response.data || '<?php _e('未知错误', 'argon'); ?>'));
+											setTimeout(function() {
+												btn.html(originalHtml);
+											}, 3000);
+										}
+									}).fail(function() {
+										btn.prop('disabled', false);
+										btn.html('<span class="dashicons dashicons-dismiss" style="margin-top: 3px; color: #dc3232;"></span> <?php _e('测试', 'argon'); ?>');
+										alert('<?php _e('网络请求失败', 'argon'); ?>');
+										setTimeout(function() {
+											btn.html(originalHtml);
+										}, 3000);
+									});
 								});
 								
 								// 显示/隐藏密码（表单内）