批次5：inventory服务下沉收口 + Pydantic v2 / datetime弃用清零

- inventory业务层下沉（薄路由+service orchestration模式）：
  - customer/supplier/warehouse -> master_data_service
  - material_routes（价格历史/趋势/供应商关联）-> material_service
  - product_routes（CRUD/BOM/from-task跨模块桥接）-> product_service
  - dashboard_routes（首页统计/低库存预警）-> dashboard_service
- inventory侧新增service回归覆盖（dashboard 2 / master_data 10 /
  material 10 / product 14），含跨模块桥接测试种子
- Pydantic v2弃用清零：全仓14处 class Config 全部迁移到
  model_config = ConfigDict(from_attributes=True)（含 shared auth）
- datetime.utcnow() 弃用清零：auth_service 3处统一改 datetime.now(timezone.utc)
- 同步文档：STATUS / ROADMAP / TECH_DEBT（D12清偿）/ AGENTS 代码地图

测试基线：126 passed, 4 skipped（无deprecation warning）

Co-Authored-By: Claude Code <noreply@anthropic.com>

src/inventory/api/warehouse_routes.py

@@ -9,15 +9,13 @@
 """
 from fastapi import APIRouter, Depends
 from sqlalchemy.ext.asyncio import AsyncSession
-from sqlalchemy import select
 from typing import List
-from datetime import datetime
 
 from shared.database.database import get_db_session
 from shared.services.auth_service import get_current_active_user
 from shared.models.identity import User
-from inventory.models import Warehouse
 from ..schemas import WarehouseCreate, WarehouseResponse
+from ..services.master_data_service import master_data_service
 
 router = APIRouter(prefix="/warehouses", tags=["仓库管理"])
 
@@ -27,10 +25,7 @@ async def list_warehouses(
     db_session: AsyncSession = Depends(get_db_session),
     current_user: User = Depends(get_current_active_user)
 ):
-    result = await db_session.execute(
-        select(Warehouse).where(Warehouse.is_active == True).order_by(Warehouse.is_default.desc())
-    )
-    return [WarehouseResponse.from_orm(w) for w in result.scalars().all()]
+    return await master_data_service.list_warehouses(db_session)
 
 
 @router.post("", response_model=WarehouseResponse, status_code=201)
@@ -39,12 +34,4 @@ async def create_warehouse(
     db_session: AsyncSession = Depends(get_db_session),
     current_user: User = Depends(get_current_active_user)
 ):
-    data = warehouse_data.dict()
-    if not data.get("code"):
-        data["code"] = f"W{datetime.now().strftime('%Y%m%d%H%M%S')}"
-    
-    warehouse = Warehouse(**data)
-    db_session.add(warehouse)
-    await db_session.flush()
-    await db_session.refresh(warehouse)
-    return WarehouseResponse.from_orm(warehouse)
+    return await master_data_service.create_warehouse(db_session, warehouse_data, current_user)