fix(ai): 保留 PixelRAG VLM model error receipt

tests/test_pixelrag_vlm_replay_worker_service.py

@@ -123,6 +123,54 @@ def test_pixelrag_vlm_replay_worker_execute_writes_artifact_receipt(tmp_path, mo
     assert receipt["parsed_output"]["fields"]["title"]["value"] == "防曬乳 SPF50"
 
 
+def test_pixelrag_vlm_replay_worker_writes_model_error_receipt(tmp_path, monkeypatch):
+    from services import pixelrag_vlm_replay_worker_service as service
+
+    _write_receipt(
+        tmp_path,
+        platform="shopee_tw",
+        manifest_id="shopee-ok",
+        title="Shopee 防曬乳",
+        url="https://shopee.tw/search?keyword=sunscreen",
+    )
+
+    class FakeOllama:
+        def __init__(self, model):
+            self.model = model
+
+        def generate(self, *args, **kwargs):
+            return SimpleNamespace(
+                success=False,
+                content="",
+                model="minicpm-v:latest",
+                error="all hosts failed",
+                total_duration=None,
+                host="http://34.21.145.224:11434",
+                input_tokens=0,
+                output_tokens=0,
+            )
+
+    monkeypatch.setattr(service, "OllamaService", FakeOllama)
+    payload = service.run_pixelrag_ollama_vlm_replay_worker(
+        artifact_root=tmp_path,
+        output_root=tmp_path / "receipts",
+        platform="shopee_tw",
+        execute=True,
+        write_receipt=True,
+        tile_limit=1,
+    )
+
+    assert payload["status"] == "critical"
+    assert payload["summary"]["model_error_count"] == 1
+    assert payload["summary"]["receipt_written_count"] == 1
+    assert payload["summary"]["artifact_write_performed"] is True
+    assert payload["controlled_apply"]["writes_database"] is False
+    receipt_path = tmp_path / "receipts" / "shopee_tw" / "shopee-ok" / "vlm_replay_receipt.json"
+    receipt = json.loads(receipt_path.read_text(encoding="utf-8"))
+    assert receipt["worker_status"] == "model_error"
+    assert receipt["next_machine_action"] == "repair_ollama_vlm_runtime_or_model_route"
+
+
 def test_pixelrag_vlm_replay_worker_cli_outputs_machine_readable_json(tmp_path):
     _write_receipt(
         tmp_path,