fix(chat): remove workspace hero card

templates/chat/index.html

@@ -11,19 +11,6 @@
       gap: 12px;
     }
 
-    .chat-hero {
-      display: flex;
-      align-items: center;
-      justify-content: space-between;
-      gap: 16px;
-      min-height: 74px;
-      padding: 16px 20px;
-    }
-
-    .chat-hero .page-title {
-      font-size: 1.45rem;
-    }
-
     .chat-layout {
       display: grid;
       grid-template-columns: 280px minmax(680px, 1fr) 340px;
@@ -344,21 +331,6 @@
     }
   </style>
 
-  <section class="page-header chat-hero">
-    <div>
-      <span class="eyebrow">Agent Workspace</span>
-      <h1 class="page-title">审核智能体</h1>
-      <p class="page-lead">围绕会话完成知识库问答、资料包上传、节点审核和导出留痕。</p>
-    </div>
-    {% if conversation %}
-      <div class="badge-row">
-        <span class="pill pill-accent">批次：{{ conversation.batch_id|default:"未绑定" }}</span>
-        <span class="pill">产品：{{ conversation.product_name|default:"知识库问答" }}</span>
-        <span class="pill">阶段：{{ conversation_context.task_status }}</span>
-      </div>
-    {% endif %}
-  </section>
-
   <section class="chat-layout">
     <input class="history-toggle" id="history-collapsed" type="checkbox">
     <aside class="panel history-panel">