fix: 知识库状态匹配增加 normal 值，兼容样本中心实际返回

app/templates/knowledge_management.html

@@ -230,7 +230,7 @@ function renderKnowledgeList(data) {
     }
 
     items.forEach(function(item) {
-        const statusHtml = (item.status == 1 || item.status === '1')
+        const statusHtml = (item.status == 1 || item.status === '1' || item.status === 'normal')
             ? '<span class="text-green-400"><i class="fas fa-check-circle"></i> 启用</span>'
             : '<span class="text-red-400"><i class="fas fa-times-circle"></i> 禁用</span>';
         const html = `<tr class="border-b border-gray-700 hover:bg-gray-700/30 transition-colors">