{# ============================================================================
   统一导航栏 —— 所有控制台页面 include 本文件，保证样式与选中态完全一致
   用法：{% set nav_active = 'overview' %} {% include "_nav.html" %}
   ============================================================================ #}
<nav>
  <span class="logo"><img src="/static/logo.png" class="logo-img" alt="MeshSafe"> MeshSafe</span>
  <a href="/console/"       class="{{ 'active' if nav_active == 'overview' else '' }}">概览</a>
  <a href="/console/policy" class="{{ 'active' if nav_active == 'policy' else '' }}">策略配置</a>
  <a href="/console/tasks"  class="{{ 'active' if nav_active == 'tasks' else '' }}">任务历史</a>
  <a href="/console/test"   class="{{ 'active' if nav_active == 'test' else '' }}">测试靶场</a>
  <a href="/console/diagnostics" class="{{ 'active' if nav_active == 'diagnostics' else '' }}">🔧 诊断</a>
  <a href="/console/about" class="{{ 'active' if nav_active == 'about' else '' }}">关于 MeshSafe</a>
  <div class="spacer"></div>
  <span class="user">{{ user.username }} ({{ user.role }})</span>
  <a href="/console/logout">退出</a>
</nav>