抽屉化物资与启动授权流程

1、将药物发货新建和编辑从独立页面迁移到抽屉，详情页支持权限控制和停用中心只读状态。

2、补充药物发货状态字段校验，统一 PENDING、IN_TRANSIT、SIGNED、EXCEPTION 状态及演示数据。

3、为物资设备增加详情页和编辑抽屉，复用通用附件上传并按项目权限控制操作入口。

4、将启动会和培训授权编辑迁移到抽屉，详情页按中心过滤培训记录并移除旧独立编辑路由。

backend/tests/test_drug_shipment_schema.py

@@ -0,0 +1,81 @@
+import uuid
+from datetime import date
+
+import pytest
+from pydantic import ValidationError
+
+from app.schemas.drug_shipment import DrugShipmentCreate
+
+
+def shipment_payload(**overrides):
+    payload = {
+        "direction": "SEND",
+        "center_id": uuid.uuid4(),
+        "ship_date": date(2026, 6, 4),
+        "receive_date": None,
+        "quantity": 1,
+        "batch_no": "DP-001",
+        "carrier": "顺丰",
+        "tracking_no": "SF100003",
+        "status": "IN_TRANSIT",
+        "remark": None,
+    }
+    payload.update(overrides)
+    return payload
+
+
+def test_create_allows_pending_shipment_execution_fields_to_be_empty():
+    shipment = DrugShipmentCreate.model_validate(
+        shipment_payload(
+            status="PENDING",
+            ship_date=None,
+            quantity=None,
+            batch_no=None,
+            carrier=None,
+            tracking_no=None,
+            receive_date=None,
+            remark=None,
+        )
+    )
+
+    assert shipment.ship_date is None
+    assert shipment.quantity is None
+    assert shipment.batch_no is None
+    assert shipment.carrier is None
+    assert shipment.tracking_no is None
+
+
+@pytest.mark.parametrize("field_name", ["ship_date", "quantity", "batch_no", "carrier", "tracking_no"])
+def test_create_requires_shipment_execution_fields_after_pending(field_name):
+    with pytest.raises(ValidationError) as exc_info:
+        DrugShipmentCreate.model_validate(shipment_payload(status="IN_TRANSIT", **{field_name: None}))
+
+    assert "发运信息" in str(exc_info.value)
+
+
+def test_create_allows_pending_receipt_fields_to_be_empty():
+    shipment = DrugShipmentCreate.model_validate(shipment_payload())
+
+    assert shipment.receive_date is None
+    assert shipment.remark is None
+
+
+def test_create_requires_receive_date_when_signed():
+    with pytest.raises(ValidationError) as exc_info:
+        DrugShipmentCreate.model_validate(shipment_payload(status="SIGNED", receive_date=None))
+
+    assert "接收日期" in str(exc_info.value)
+
+
+def test_create_rejects_removed_returned_status():
+    with pytest.raises(ValidationError) as exc_info:
+        DrugShipmentCreate.model_validate(shipment_payload(status="RETURNED", receive_date=date(2026, 6, 5)))
+
+    assert "无效状态" in str(exc_info.value)
+
+
+def test_create_requires_remark_when_exceptional():
+    with pytest.raises(ValidationError) as exc_info:
+        DrugShipmentCreate.model_validate(shipment_payload(status="EXCEPTION", remark=""))
+
+    assert "备注" in str(exc_info.value)