test: 补强资料包关联会话跳转证据

tests/test_documents.py

@@ -251,6 +251,25 @@ def test_document_list_supports_batch_id_search(client, db):
     assert "SUB-20260604-001" not in content
 
 
+def test_document_list_shows_link_to_bound_conversation(client, db):
+    SubmissionBatch.objects.create(
+        batch_id="SUB-20260604-201",
+        product_name="产品C",
+        workflow_type="registration",
+        conversation_id="conv-201",
+        file_count=2,
+        page_count=12,
+        import_status="completed",
+    )
+
+    response = client.get(reverse("documents:list"))
+
+    content = response.content.decode("utf-8")
+    assert response.status_code == 200
+    assert "查看对话 conv-201" in content
+    assert reverse("chat:detail", args=["conv-201"]) in content
+
+
 def test_build_document_list_context_filters_batches_by_keyword(db):
     target_batch = SubmissionBatch.objects.create(
         batch_id="SUB-20260604-101",