fix(regulatory): 自动执行法规核查前置汇总

tests/test_file_summary_frontend.py

@@ -187,6 +187,16 @@ def test_frontend_refreshes_generated_workflow_messages():
     assert "data-message-url-template" in script
 
 
+def test_frontend_only_scrolls_after_appending_new_messages():
+    script = open("static/js/app.js", encoding="utf-8").read()
+
+    assert "return false;" in script
+    assert "return true;" in script
+    assert "var appendedCount = 0;" in script
+    assert "if (appendConversationMessage(message))" in script
+    assert "if (appendedCount > 0)" in script
+
+
 def test_frontend_can_replace_partial_stream_content():
     script = open("static/js/app.js", encoding="utf-8").read()