fix(flywheel): fallback on OpenClaw degraded responses

apps/api/tests/test_openclaw_nemo_provider.py

@@ -0,0 +1,74 @@
+from __future__ import annotations
+
+import httpx
+import pytest
+
+from src.services.ai_providers.openclaw_nemo import OpenClawNemoProvider
+
+
+def _transport(payload: dict) -> httpx.MockTransport:
+    def handler(_: httpx.Request) -> httpx.Response:
+        return httpx.Response(200, json=payload)
+
+    return httpx.MockTransport(handler)
+
+
+@pytest.mark.asyncio
+async def test_openclaw_degraded_response_is_fallbackable():
+    provider = OpenClawNemoProvider()
+    provider._http_client = httpx.AsyncClient(transport=_transport({
+        "action_title": "OpenClaw 降級調查",
+        "description": "OpenClaw 下游 LLM timeout",
+        "suggested_action": "investigate",
+        "kubectl_command": None,
+        "target_resource": "awoooi-api",
+        "namespace": "awoooi-prod",
+        "risk_level": "low",
+        "confidence": 0.2,
+        "provider": "openclaw_degraded",
+        "degraded": True,
+        "reasoning": "NVIDIA NIM timeout",
+    }))
+
+    result = await provider.analyze("diagnose", context={"incident_id": "inc-1"})
+    await provider.close()
+
+    assert result.success is False
+    assert result.provider == "openclaw_nemo"
+    assert "OpenClaw degraded" in (result.error or "")
+
+
+@pytest.mark.asyncio
+async def test_openclaw_low_confidence_response_is_fallbackable():
+    provider = OpenClawNemoProvider()
+    provider._http_client = httpx.AsyncClient(transport=_transport({
+        "action_title": "調查服務異常",
+        "risk_level": "low",
+        "confidence": 0.1,
+        "provider": "openclaw_nvidia_nim",
+        "reasoning": "low confidence",
+    }))
+
+    result = await provider.analyze("diagnose", context={"incident_id": "inc-2"})
+    await provider.close()
+
+    assert result.success is False
+    assert "OpenClaw degraded" in (result.error or "")
+
+
+@pytest.mark.asyncio
+async def test_openclaw_normal_response_stays_successful():
+    provider = OpenClawNemoProvider()
+    provider._http_client = httpx.AsyncClient(transport=_transport({
+        "action_title": "重啟服務",
+        "risk_level": "medium",
+        "confidence": 0.8,
+        "provider": "openclaw_nvidia_nim",
+        "reasoning": "valid proposal",
+    }))
+
+    result = await provider.analyze("diagnose", context={"incident_id": "inc-3"})
+    await provider.close()
+
+    assert result.success is True
+    assert result.provider == "openclaw_nemo"