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照原型库存表「成本价(进价)+单价(售价)」两列: - 库存查询 SELECT 加 p.sale_price AS sale_price;成本价 unit_price 补 p.purchase_price 兜底 - inventoryRow 加 SalePrice;前端 Inventory model 加 salePrice - 多租户隔离不变(baseWhere 仍 inv.shop_id);库存测试通过 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TSKEiHsvauyxYUW2itzUXX