fix(gateway): 补齐鉴权测试页并保持旧接口兼容

static/test_interface42.html

@@ -63,10 +63,12 @@
   <h1>🔬 接口42 — 用户特征分析与两项判定 测试</h1>
   <p class="subtitle">POST /api/v1/face/features-42 &nbsp;|&nbsp; 质检 → 扶正裁切 → 面部特征与两项判定 &nbsp;|&nbsp; data.features 为 JSON 字符串</p>
 
-  <form id="client-auth" style="display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:12px 0">
+  <form id="client-auth" method="post" action="/api/v1/auth/login" style="display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:12px 0">
     <label>用户名 <input name="username" autocomplete="username" required></label>
     <label>密码 <input name="password" type="password" autocomplete="current-password" required></label>
     <button type="submit">登录</button>
+    <button id="client-auth-check" type="button">测试鉴权</button>
+    <button id="client-auth-refresh" type="button" disabled>刷新令牌</button>
     <span id="client-auth-status" role="status">登录后可调用接口。</span>
   </form>
   <script src="/static/client_auth.js" defer></script>