fix: address M3 verifier findings on soak invariants and probe tests

tests/integration/test_monkey_ocr_live.py

@@ -55,7 +55,7 @@ class TestLiveEndpoints:
     async def test_recognize_text_returns_content(self):
         async with OcrClient.from_env("OCR", env=_env({1: _PRIMARY})) as client:
             result = await client.recognize_text(_TABLE_IMAGE.read_bytes())
-        assert result.text.strip()  # 真实护理记录图必有文字
+        assert result.text.strip()  # 取证样本已核: 该图含可识别文字
         assert result.source_name == "monkey_1"
         assert result.usage.prompt_tokens == 0 and result.latency_ms > 0