整理配置和代码入口，增加部分测试。

tests/unit/test_material_detail_api_handler.py

@@ -0,0 +1,62 @@
+from __future__ import annotations
+
+from typing import Any
+
+import pytest
+from pydantic import BaseModel
+
+from sync_state_machine.common.sync_node import SyncNode
+from sync_state_machine.domain.material_detail.api_handler import MaterialDetailApiHandler
+from sync_state_machine.datasource.task_result import TaskStatus
+
+
+class _MaterialDetailSchema(BaseModel):
+    id: str
+    parent_id: str
+    quantity: float
+    remark: str | None = None
+
+
+class _MaterialDetailNode(SyncNode[_MaterialDetailSchema]):
+    node_type = "material_detail"
+    schema = _MaterialDetailSchema
+
+
+class _MockApiClient:
+    def __init__(self) -> None:
+        self.requests: list[dict[str, Any]] = []
+
+    async def request(self, method: str, endpoint: str, **kwargs: Any) -> dict[str, Any]:
+        self.requests.append({"method": method, "endpoint": endpoint, **kwargs})
+        return {"code": 200, "message": "OK", "data": {"biz_id": kwargs.get("data", {}).get("biz_id")}}
+
+
+@pytest.mark.asyncio
+async def test_material_detail_update_returns_in_progress_with_shared_push_id() -> None:
+    handler = MaterialDetailApiHandler()
+    handler.api_client = _MockApiClient()
+
+    node = _MaterialDetailNode(
+        node_id="detail-node-1",
+        data_id="detail-1",
+        data={
+            "id": "detail-1",
+            "parent_id": "material-1",
+            "quantity": 10.0,
+            "remark": "new",
+        },
+        origin_data={
+            "id": "detail-1",
+            "parent_id": "material-1",
+            "quantity": 5.0,
+            "remark": None,
+        },
+        context={"material_id": "material-1"},
+    )
+
+    results = await handler.update_all([node])
+
+    assert len(results) == 1
+    assert results[0].status == TaskStatus.IN_PROGRESS
+    assert results[0].task_id
+    assert handler.api_client.requests[0]["endpoint"] == "/material/detail/update"