Brings the bypos JSONL import backend (handler + store) into main so the
bypos-collector tool's import feature works end-to-end. Records are upserted
on GTIN with manufacturer/MSRP/barcode/source provenance, quality recomputed
per product. Only status=hit records with a name are imported.
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Click a column header (名称/品牌/条码/品类/状态/质量分) to sort asc, click
again for desc, and a third time to clear back to the default
most-recently-updated order. Sort key/direction are whitelisted server-side.
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
品牌管理：列出品牌及引用商品数，支持改名、合并重复品牌（把源品牌的商品并入目标后删除源）、删除未被引用的品牌。新建商品：商品列表新增「新建商品」入口，填写名称/条码/品牌/品类后创建并进入详情页继续补全。
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Wire the multi-barcode store layer to HTTP and the operator console:
- adminhandler: add POST /products/{id}/barcodes, DELETE
/products/{id}/barcodes/{barcodeID}, and POST .../primary. A barcode
owned by another product returns 409 with the conflicting product
(gtin/product_id/product_name); an invalid GTIN returns 400.
- admin-frontend: BarcodesCard on the product detail page lists all
barcodes (primary starred), adds with type/pack-level/region, sets
primary, and deletes; audit labels for the new actions.
- public-frontend: product detail surfaces non-primary barcodes so a
case/region code resolves and is visible to consumers.
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
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