feat: 支持会话内补传资料并保持绑定

templates/chat/index.html

@@ -119,9 +119,19 @@
               <div>导入状态：{{ batch.get_import_status_display_text }}</div>
             </li>
           </ul>
+          <form method="post" action="{% url 'chat:upload-documents' conversation.conversation_id %}" enctype="multipart/form-data" class="stack" style="margin-top: 16px;">
+            {% csrf_token %}
+            <div>
+              {{ upload_form.files.label_tag }}
+              {{ upload_form.files }}
+            </div>
+            <div class="button-row">
+              <button type="submit">继续上传资料</button>
+              <a class="button" href="{% url 'documents:list' %}">返回资料包</a>
+            </div>
+          </form>
           <div class="button-row" style="margin-top: 16px;">
-            <a class="button button-primary" href="{% url 'documents:upload' %}">继续上传资料</a>
-            <a class="button" href="{% url 'documents:list' %}">返回资料包</a>
+            <a class="button" href="{% url 'documents:upload' %}">导入新资料包</a>
           </div>
         {% else %}
           <div class="notice">暂无绑定资料包。</div>