test: 添加 QE-Agent workflow smoke test - Closes #97

QE-Agent 工作流验证测试，仅用于测试 CI/CD 流程。

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

tests/test_sample.py

@@ -92,3 +92,10 @@ def test_sample_ir_json_is_valid():
         assert isinstance(data, (dict, list))
     else:
         pytest.skip("Sample IR JSON not found")
+
+
+# -- QE-Agent workflow test --------------------------------------------------
+
+def test_qe_agent_workflow():
+    """QE-Agent workflow smoke test: basic test discovery works."""
+    assert True