fix(goods): 商品展示名统一「品名 SKU」——剥 ASCII 型号限定词、纯款号补描述

左栏商品名显示成光款号（如 PLTK016）的根因是双层解析不一致：api 写路径按
首括号对解析产出「童装…（DTG180） PLTK016」，admin 展示解析按末括号取品名
误显示成 PLTK016。

- admin parseLinkName 对齐 api 首括号对解析 + 无 SKU 段中文品名守卫，
  cleanLinkName 剥离 ASCII 型号限定词（中文括号内容保留）
- api 新增 cleanGoodDisplayName/describePureSkuGoodName，接入 create/update/
  batchCreate（batchCreate 补上缺失的 normalize）；纯款号按 SDS 分类名补描述
- 新增幂等存量修复脚本 fix:good-names（默认 dry-run，--apply 写库）
- 已执行：V2 栈 34 条限定词名、V1 栈 213 条原始链接名规范化，复跑幂等 0

Tests: api 22 suites/199 passed, admin 27 passed, tsc clean

apps/admin/src/utils/origin-name.spec.ts

@@ -80,6 +80,38 @@ describe('parseLinkName / cleanLinkName', () => {
   });
 });
 
+describe('已规范化的「品名（型号限定词） SKU」防误解析 + 限定词剥离', () => {
+  it('品名内含（限定词）的已规范化名不再解析（否则展示会变成光款号）', () => {
+    expect(parseLinkName('童装纯色插肩短袖T恤（DTG180） PLTK016')).toBeNull();
+    expect(parseLinkName('牛奶丝T恤（女款） DG601')).toBeNull();
+    expect(parseLinkName('180G纯棉T恤 （JSA002） DG001')).toBeNull();
+  });
+
+  it('cleanLinkName 对已规范化名剥离 ASCII 型号限定词', () => {
+    expect(cleanLinkName('童装纯色插肩短袖T恤（DTG180） PLTK016')).toBe(
+      '童装纯色插肩短袖T恤 PLTK016',
+    );
+    expect(cleanLinkName('180G纯棉T恤 （JSA002） DG001')).toBe('180G纯棉T恤 DG001');
+  });
+
+  it('原始链接名品名内含限定词时，解析后一并剥离', () => {
+    expect(
+      cleanLinkName('波兰（包邮）童装纯色插肩短袖T恤（DTG180）-PLTK016-双面印花'),
+    ).toBe('童装纯色插肩短袖T恤 PLTK016');
+  });
+
+  it('中文括号内容（如（女款））不剥离', () => {
+    expect(cleanLinkName('牛奶丝T恤（女款） DG601')).toBe('牛奶丝T恤（女款） DG601');
+  });
+
+  it('无 SKU 段的单段链接名仍按首括号对解析（与 api 端一致）', () => {
+    expect(parseLinkName('波兰（包邮）童装T恤')).toEqual({
+      productName: '童装T恤',
+      skuCode: null,
+    });
+  });
+});
+
 describe('deriveLinkTagNames', () => {
   it('单面印花 + 包邮 + 无工艺关键字 → 单面印花/烫画/包邮', () => {
     expect(deriveLinkTagNames('美国（包邮）180g纯棉T恤成人款-DG001-单面印花')).toEqual([

apps/admin/src/utils/origin-name.ts

@@ -51,27 +51,46 @@ export interface ParsedLinkName {
 
 /**
  * 解析链接名称：`国家（物流备注）品名-SKU-工艺位置[-·仓库名]` → 品名 + 型号。
- * 与 api 端 origin-name.parser.ts 同构；解析失败（无「国家（备注）」前缀结构）返回 null，
- * 调用方应回退显示原始名称 —— 手动维护的品名不走该解析。
+ * 与 api 端 origin-name.parser.ts 同构（首括号对解析，半角/全角混用先归一）；
+ * 解析失败（无「国家（备注）」前缀结构）返回 null，调用方应回退显示原始名称
+ * —— 手动维护的品名不走该解析。
  */
 export function parseLinkName(name: string | null | undefined): ParsedLinkName | null {
   if (!name) return null;
   const segs = name.split('-').map((s) => s.trim());
   const head = segs[0] ?? '';
-  const closeIdx = Math.max(head.lastIndexOf('）'), head.lastIndexOf(')'));
-  if (closeIdx <= 0 || closeIdx === head.length - 1) return null;
-  const productName = head.slice(closeIdx + 1).trim();
+  const normalized = head.replace(/\(/g, '（').replace(/\)/g, '）');
+  const openAt = normalized.indexOf('（');
+  const closeAt = openAt >= 0 ? normalized.indexOf('）', openAt) : -1;
+  if (closeAt <= openAt || closeAt === normalized.length - 1) return null;
+  const productName = normalized.slice(closeAt + 1).trim();
   if (!productName) return null;
+  // 无 SKU 段时仅当括号后的品名含中文才视为链接名 —— 防把已规范化的
+  // 「品名（型号限定词） SKU」（如「童装…（DTG180） PLTK016」）的尾段款号误当品名
+  if (segs.length < 2 && !/[\u4e00-\u9fff]/.test(productName)) return null;
   const skuCode = segs[1] || null;
   return { productName, skuCode };
 }
 
-/** 展示名：`品名 型号`（如「180g纯棉T恤成人款 DG001」）；解析失败回退原名 */
+/** ASCII 型号限定词括号组（SDS 品名内的供应商/工艺型号，如（DTG180）（JSA002）） */
+const ASCII_PAREN_GROUP = /(?:（|\()[A-Za-z0-9]+(?:）|\))/g;
+
+/** 展示名剥离 ASCII 型号限定词；剥空（名称仅剩限定词）时原样返回 */
+export function stripAsciiParenQualifiers(name: string): string {
+  const stripped = name.replace(ASCII_PAREN_GROUP, ' ').replace(/\s+/g, ' ').trim();
+  return stripped || name;
+}
+
+/** 展示名：`品名 型号`（如「180g纯棉T恤成人款 DG001」）；解析失败回退原名。品名内的 ASCII 型号限定词一并剥离 */
 export function cleanLinkName(name: string | null | undefined): string {
   if (!name) return '';
   const parsed = parseLinkName(name);
-  if (!parsed) return name;
-  return parsed.skuCode ? `${parsed.productName} ${parsed.skuCode}` : parsed.productName;
+  const base = parsed
+    ? parsed.skuCode
+      ? `${parsed.productName} ${parsed.skuCode}`
+      : parsed.productName
+    : name;
+  return stripAsciiParenQualifiers(base);
 }
 
 const CRAFT_KEYWORD_MAP: Record<string, string> = {

apps/api/package.json

@@ -24,6 +24,7 @@
     "configure:product-center-icons": "ts-node prisma/configure-product-center-icons.ts",
     "import:product-detail": "ts-node prisma/import-product-detail.ts",
     "backfill:product-families": "ts-node prisma/backfill-product-families.ts",
+    "fix:good-names": "ts-node prisma/fix-pure-sku-good-names.ts",
     "organize": "ts-node prisma/backfill-product-families.ts"
   },
   "dependencies": {

apps/api/prisma/fix-pure-sku-good-names.ts

@@ -0,0 +1,42 @@
+/**
+ * 存量修复脚本（幂等）：把纯款号商品名（如 `PLTK016`）按主链接 SDS 分类名
+ * 补成「描述名 款号」（如 `童装纯色插肩短袖T恤 PLTK016`）。
+ *
+ * 运行：
+ *   pnpm --filter @inkreach/api fix:good-names             # dry-run，只打印清单
+ *   pnpm --filter @inkreach/api fix:good-names -- --apply  # 实际写库
+ * origin_goods.good_name 为 SDS 纯镜像（每小时同步覆盖），本脚本只改 goods.good_name。
+ */
+import { PrismaService } from '../src/prisma/prisma.service';
+import { SyncService } from '../src/sync/sync.service';
+import { FamilyRecomputeService } from '../src/product-families/family-recompute.service';
+import { GoodsService } from '../src/goods/goods.service';
+
+async function main() {
+  const dryRun = !process.argv.includes('--apply');
+  const prisma = new PrismaService();
+  await prisma.onModuleInit();
+  const recompute = new FamilyRecomputeService(prisma);
+  // 回填路径不触发详情同步，SyncService 仅作占位依赖
+  const goods = new GoodsService(
+    prisma,
+    { queueProductDetailSync: async () => undefined } as unknown as SyncService,
+    recompute,
+  );
+
+  const result = await goods.backfillPureSkuGoodNames({ dryRun });
+  const mode = dryRun ? 'DRY-RUN（未写库，加 --apply 执行）' : 'APPLIED';
+  console.log(`[fix:good-names] ${mode} renamed=${result.renamed} unmapped=${result.unmapped.length}`);
+  for (const r of result.renames) {
+    console.log(`  #${r.id}  ${r.from}  ->  ${r.to}`);
+  }
+  for (const u of result.unmapped) {
+    console.log(`  #${u.id}  ${u.from}  ->  （无分类映射，保留原名）`);
+  }
+  await prisma.onModuleDestroy();
+}
+
+main().catch((error) => {
+  console.error(error);
+  process.exit(1);
+});

apps/api/src/goods/goods.service.spec.ts

@@ -3,7 +3,12 @@ import {
   BadRequestException,
   NotFoundException,
 } from '@nestjs/common';
-import { GoodsService } from './goods.service';
+import {
+  cleanGoodDisplayName,
+  describePureSkuGoodName,
+  GoodsService,
+  isPureSkuGoodName,
+} from './goods.service';
 import { PrismaService } from '../prisma/prisma.service';
 import { SyncService } from '../sync/sync.service';
 import { FamilyRecomputeService } from '../product-families/family-recompute.service';
@@ -312,6 +317,223 @@ describe('GoodsService', () => {
     });
   });
 
+  describe('pure sku good name（纯款号补描述）', () => {
+    const pskuCode = `PSKU${stamp}`;
+    const pskuDesc = `童装纯色测试插肩T恤${stamp}`;
+    let pskuOriginGoodId: bigint;
+    let bareOriginGoodId: bigint;
+
+    beforeAll(async () => {
+      await prisma.category.create({
+        data: {
+          categoryName: `${pskuCode} ${pskuDesc}`,
+          sdsCategoryId: `psku-cat-${stamp}`,
+        },
+      });
+      const pskuOg = await prisma.originGood.create({
+        data: {
+          sdsGoodId: `sds-psku-${stamp}`,
+          goodName: pskuCode,
+          sdsCategoryId: `psku-cat-${stamp}`,
+        },
+      });
+      pskuOriginGoodId = pskuOg.id;
+      const bareOg = await prisma.originGood.create({
+        data: {
+          sdsGoodId: `sds-psku-bare-${stamp}`,
+          goodName: `PSKB${stamp}`,
+        },
+      });
+      bareOriginGoodId = bareOg.id;
+    });
+
+    afterAll(async () => {
+      await prisma.good.deleteMany({
+        where: { OR: [{ goodName: { contains: pskuCode } }, { goodName: { contains: `PSKB${stamp}` } }] },
+      });
+      await prisma.originGood.deleteMany({
+        where: { id: { in: [pskuOriginGoodId, bareOriginGoodId] } },
+      });
+      await prisma.category.deleteMany({
+        where: { sdsCategoryId: `psku-cat-${stamp}` },
+      });
+    });
+
+    it('isPureSkuGoodName：仅纯字母数字为真', () => {
+      expect(isPureSkuGoodName('PLTK016')).toBe(true);
+      expect(isPureSkuGoodName(' pltk016 ')).toBe(true);
+      expect(isPureSkuGoodName('PSKU1')).toBe(true);
+      expect(isPureSkuGoodName('童装纯色插肩短袖T恤 PLTK016')).toBe(false);
+      expect(isPureSkuGoodName('德国(不包邮)T恤-DG001-烫画')).toBe(false);
+      expect(isPureSkuGoodName('230g水洗T恤 DETM002')).toBe(false);
+      expect(isPureSkuGoodName('P')).toBe(false);
+      expect(isPureSkuGoodName('')).toBe(false);
+    });
+
+    it('cleanGoodDisplayName：品名内的 ASCII 型号限定词剥离，中文括号内容保留', () => {
+      expect(
+        cleanGoodDisplayName('波兰（包邮）童装纯色插肩短袖T恤（DTG180）-PLTK016-双面印花'),
+      ).toBe('童装纯色插肩短袖T恤 PLTK016');
+      expect(cleanGoodDisplayName('童装纯色插肩短袖T恤（DTG180） PLTK016')).toBe(
+        '童装纯色插肩短袖T恤 PLTK016',
+      );
+      expect(cleanGoodDisplayName('180G纯棉T恤 （JSA002） DG001')).toBe('180G纯棉T恤 DG001');
+      expect(cleanGoodDisplayName('牛奶丝T恤（女款） DG601')).toBe('牛奶丝T恤（女款） DG601');
+      expect(cleanGoodDisplayName('230g水洗T恤 DETM002')).toBe('230g水洗T恤 DETM002');
+    });
+
+    it('describePureSkuGoodName：标准分类名剥款号补描述', () => {
+      expect(
+        describePureSkuGoodName('PLTK016', 'PLTK016 童装纯色插肩短袖T恤'),
+      ).toBe('童装纯色插肩短袖T恤 PLTK016');
+    });
+
+    it('describePureSkuGoodName：分类名无款号前缀时用全名', () => {
+      expect(
+        describePureSkuGoodName('PLTK016', '童装纯色插肩短袖T恤'),
+      ).toBe('童装纯色插肩短袖T恤 PLTK016');
+    });
+
+    it('describePureSkuGoodName：分类名即款号/空分类名/非纯款号名原样返回', () => {
+      expect(describePureSkuGoodName('PLTK016', 'PLTK016')).toBe('PLTK016');
+      expect(describePureSkuGoodName('PLTK016', null)).toBe('PLTK016');
+      expect(describePureSkuGoodName('PLTK016', undefined)).toBe('PLTK016');
+      expect(
+        describePureSkuGoodName('童装T恤 PLTK016', 'PLTK016 童装T恤'),
+      ).toBe('童装T恤 PLTK016');
+      expect(describePureSkuGoodName('230g水洗T恤 DETM002', 'PLTK016 童装T恤')).toBe(
+        '230g水洗T恤 DETM002',
+      );
+    });
+
+    it('describePureSkuGoodName：分类名中的 ASCII 型号限定词一并剥离', () => {
+      expect(
+        describePureSkuGoodName('PLTK016', 'PLTK016 童装纯色插肩短袖T恤（DTG180）'),
+      ).toBe('童装纯色插肩短袖T恤 PLTK016');
+    });
+
+    it('create：纯款号名按主链接 SDS 分类名补描述', async () => {
+      const created = await service.create({
+        goodName: pskuCode,
+        originGoodId: Number(pskuOriginGoodId),
+        countryId: Number(countryId),
+        categoryId: Number(categoryId),
+      });
+      try {
+        expect(created.goodName).toBe(`${pskuDesc} ${pskuCode}`);
+      } finally {
+        await prisma.good.delete({ where: { id: BigInt(created.id) } });
+      }
+    });
+
+    it('create：主链接无 sdsCategoryId 映射时纯款号原样保留', async () => {
+      const created = await service.create({
+        goodName: `PSKB${stamp}`,
+        originGoodId: Number(bareOriginGoodId),
+        countryId: Number(countryId),
+        categoryId: Number(categoryId),
+      });
+      try {
+        expect(created.goodName).toBe(`PSKB${stamp}`);
+      } finally {
+        await prisma.good.delete({ where: { id: BigInt(created.id) } });
+      }
+    });
+
+    it('update：改成纯款号名按商品主链接分类名补描述', async () => {
+      const created = await service.create({
+        goodName: `Goods Test ${stamp} psku-rename`,
+        originGoodId: Number(pskuOriginGoodId),
+        countryId: Number(countryId),
+        categoryId: Number(categoryId),
+      });
+      try {
+        const updated = await service.update(BigInt(created.id), {
+          goodName: pskuCode,
+        });
+        expect(updated.goodName).toBe(`${pskuDesc} ${pskuCode}`);
+      } finally {
+        await prisma.good.delete({ where: { id: BigInt(created.id) } });
+      }
+    });
+
+    it('batchCreate：纯款号链接名补描述、完整链接名规范化', async () => {
+      const created = await service.batchCreate({
+        countryId: Number(countryId),
+        categoryId: Number(categoryId),
+        items: [{ originGoodId: Number(pskuOriginGoodId) }],
+      });
+      try {
+        expect(created[0]?.goodName).toBe(`${pskuDesc} ${pskuCode}`);
+      } finally {
+        await prisma.good.deleteMany({
+          where: { id: { in: created.map((g) => BigInt(g.id)) } },
+        });
+      }
+    });
+
+    it('backfillPureSkuGoodNames：dry-run 只列不改，apply 改名且幂等', async () => {
+      // 绕过写路径直写库，模拟存量纯款号名
+      const row = await prisma.good.create({
+        data: {
+          goodName: pskuCode,
+          originGoodId: pskuOriginGoodId,
+          countryId,
+          categoryId,
+        },
+      });
+      try {
+        // dry-run / apply 均用 goodId 限定在本夹具，避免测试副作用波及共享库真实数据
+        const dry = await service.backfillPureSkuGoodNames({ dryRun: true, goodId: row.id });
+        expect(dry.renames).toEqual([
+          { id: row.id.toString(), from: pskuCode, to: `${pskuDesc} ${pskuCode}` },
+        ]);
+        expect(
+          (await prisma.good.findUniqueOrThrow({ where: { id: row.id } })).goodName,
+        ).toBe(pskuCode);
+
+        const applied = await service.backfillPureSkuGoodNames({ dryRun: false, goodId: row.id });
+        expect(applied.renamed).toBe(1);
+        expect(
+          (await prisma.good.findUniqueOrThrow({ where: { id: row.id } })).goodName,
+        ).toBe(`${pskuDesc} ${pskuCode}`);
+
+        // 幂等：已改名的行不再出现在后续清单
+        const again = await service.backfillPureSkuGoodNames({ dryRun: true, goodId: row.id });
+        expect(again.renames).toEqual([]);
+      } finally {
+        await prisma.good.delete({ where: { id: row.id } });
+      }
+    });
+
+    it('backfillPureSkuGoodNames：剥离「品名（型号限定词） SKU」存量名中的限定词', async () => {
+      const row = await prisma.good.create({
+        data: {
+          goodName: `${pskuDesc}（DTG180） ${pskuCode}`,
+          originGoodId: pskuOriginGoodId,
+          countryId,
+          categoryId,
+        },
+      });
+      try {
+        const dry = await service.backfillPureSkuGoodNames({ dryRun: true, goodId: row.id });
+        expect(dry.renames).toEqual([
+          {
+            id: row.id.toString(),
+            from: `${pskuDesc}（DTG180） ${pskuCode}`,
+            to: `${pskuDesc} ${pskuCode}`,
+          },
+        ]);
+        await service.backfillPureSkuGoodNames({ dryRun: false, goodId: row.id });
+        expect(
+          (await prisma.good.findUniqueOrThrow({ where: { id: row.id } })).goodName,
+        ).toBe(`${pskuDesc} ${pskuCode}`);
+      } finally {
+        await prisma.good.delete({ where: { id: row.id } });
+      }
+    });
+  });
+
   describe('merged origin goods', () => {
     it('creates a good with merged origin goods and reads them back', async () => {
       const created = await service.create({

apps/api/src/goods/goods.service.ts

@@ -72,6 +72,48 @@ export function normalizeGoodName(name: string): string {
   return name;
 }
 
+/** ASCII 型号限定词括号组（SDS 品名内的供应商/工艺型号，如（DTG180）（JSA002）） */
+const ASCII_PAREN_GROUP = /(?:（|\()[A-Za-z0-9]+(?:）|\))/g;
+
+/** 展示名剥离 ASCII 型号限定词；剥空（名称仅剩限定词）时原样返回 */
+export function stripAsciiParenQualifiers(name: string): string {
+  const stripped = name.replace(ASCII_PAREN_GROUP, ' ').replace(/\s+/g, ' ').trim();
+  return stripped || name;
+}
+
+/**
+ * 商品展示名清洗：规范化 + 剥离 ASCII 型号限定词。
+ * SDS 品名常带型号限定词（如 `童装…（DTG180）`），展示名统一剥成「品名 SKU」。
+ */
+export function cleanGoodDisplayName(name: string): string {
+  return stripAsciiParenQualifiers(normalizeGoodName(name));
+}
+
+/** 纯款号名：仅字母/数字（如 `PLTK016`），链接名解析不出品名即此类 */
+export function isPureSkuGoodName(name: string): boolean {
+  return /^[A-Za-z0-9]{2,}$/.test(name.trim());
+}
+
+/**
+ * 纯款号展示名兜底：用 SDS 分类名补描述。
+ * `PLTK016` + 分类名 `PLTK016 童装纯色插肩短袖T恤` → `童装纯色插肩短袖T恤 PLTK016`。
+ * 分类名首 token 仅当为纯字母数字时视为款号剥离（与 auto-group 的
+ * codeFromCategoryName 语义一致），描述中的 ASCII 型号限定词一并剥离；
+ * 非纯款号名、无分类名或剥后为空时原样返回。
+ */
+export function describePureSkuGoodName(
+  name: string,
+  categoryName: string | null | undefined,
+): string {
+  if (!isPureSkuGoodName(name) || !categoryName?.trim()) return name;
+  const sku = name.trim();
+  const tokens = categoryName.trim().split(/\s+/);
+  const desc = stripAsciiParenQualifiers(
+    (/^[A-Za-z0-9]+$/.test(tokens[0] ?? '') ? tokens.slice(1) : tokens).join(' '),
+  );
+  return desc ? `${desc} ${sku}` : name;
+}
+
 @Injectable()
 export class GoodsService {
   constructor(
@@ -149,12 +191,12 @@ export class GoodsService {
       // Good 的族是派生数据：主链接所属族
       const primary = await tx.originGood.findUnique({
         where: { id: BigInt(dto.originGoodId) },
-        select: { familyId: true },
+        select: { familyId: true, sdsCategoryId: true },
       });
       const tagIds = await this.stripAutoGroupTags(dto.tagIds ?? [], primary?.familyId ?? null);
       const created = await tx.good.create({
         data: {
-          goodName: normalizeGoodName(dto.goodName),
+          goodName: await this.resolveGoodName(tx, dto.goodName, primary?.sdsCategoryId),
           goodImage: dto.goodImage,
           originGoodId: BigInt(dto.originGoodId),
           familyId: primary?.familyId ?? null,
@@ -344,7 +386,13 @@ export class GoodsService {
       await this.ensureMergedOriginGoods(mergedIds);
     }
     const data: Prisma.GoodUpdateInput = {};
-    if (dto.goodName !== undefined) data.goodName = normalizeGoodName(dto.goodName);
+    if (dto.goodName !== undefined) {
+      data.goodName = await this.resolveGoodName(
+        this.prisma,
+        dto.goodName,
+        await this.sdsCategoryIdForGood(id, dto.originGoodId),
+      );
+    }
     if (dto.originGoodId !== undefined) {
       await this.ensureOriginGood(dto.originGoodId);
       data.originGood = { connect: { id: BigInt(dto.originGoodId) } };
@@ -518,7 +566,11 @@ export class GoodsService {
         }
         const row = await tx.good.create({
           data: {
-            goodName: og.goodName ?? `Origin Good ${og.sdsGoodId}`,
+            goodName: await this.resolveGoodName(
+              tx,
+              og.goodName ?? `Origin Good ${og.sdsGoodId}`,
+              og.sdsCategoryId,
+            ),
             goodImage: og.goodImage,
             originGoodId: og.id,
             familyId: og.familyId,
@@ -585,6 +637,81 @@ export class GoodsService {
     return result;
   }
 
+  /**
+   * 存量修复（幂等）：商品展示名统一为「品名 SKU」——
+   * 1. 剥离 ASCII 型号限定词（如 `童装…（DTG180） PLTK016` → `童装… PLTK016`），
+   *    顺带把结构完整的原始链接名规范化；
+   * 2. 清洗后仍为纯款号（如 `PLTK016`）的，按主链接 SDS 分类名补描述。
+   * dryRun 只返回清单不写库；goodId 可将范围限定到单个商品（测试用）。
+   * 纯款号但无分类映射（补不出描述名）的行保持原样并计入 unmapped。
+   */
+  async backfillPureSkuGoodNames(opts: {
+    dryRun: boolean;
+    goodId?: bigint;
+  }): Promise<{
+    applied: boolean;
+    renamed: number;
+    renames: { id: string; from: string; to: string }[];
+    unmapped: { id: string; from: string }[];
+  }> {
+    const rows = await this.prisma.good.findMany({
+      where: opts.goodId !== undefined ? { id: opts.goodId } : {},
+      select: {
+        id: true,
+        goodName: true,
+        originGood: { select: { sdsCategoryId: true } },
+      },
+    });
+    const cleaned = rows.map((row) => {
+      const name = cleanGoodDisplayName(row.goodName);
+      return { row, name, pure: isPureSkuGoodName(name) };
+    });
+    const sdsCategoryIds = [
+      ...new Set(
+        cleaned
+          .filter((c) => c.pure)
+          .map((c) => c.row.originGood?.sdsCategoryId)
+          .filter((v): v is string => Boolean(v)),
+      ),
+    ];
+    const categories = sdsCategoryIds.length
+      ? await this.prisma.category.findMany({
+          where: { sdsCategoryId: { in: sdsCategoryIds } },
+          select: { sdsCategoryId: true, categoryName: true },
+        })
+      : [];
+    const categoryNameBySdsId = new Map(
+      categories.map((c) => [c.sdsCategoryId, c.categoryName]),
+    );
+
+    const renames: { id: string; from: string; to: string }[] = [];
+    const unmapped: { id: string; from: string }[] = [];
+    for (const { row, name, pure } of cleaned) {
+      const categoryName =
+        pure && row.originGood?.sdsCategoryId
+          ? categoryNameBySdsId.get(row.originGood.sdsCategoryId)
+          : undefined;
+      const to = describePureSkuGoodName(name, categoryName);
+      if (to === row.goodName) {
+        if (pure) unmapped.push({ id: row.id.toString(), from: row.goodName });
+      } else {
+        renames.push({ id: row.id.toString(), from: row.goodName, to });
+      }
+    }
+
+    if (!opts.dryRun && renames.length > 0) {
+      await this.prisma.$transaction(
+        renames.map((r) =>
+          this.prisma.good.update({
+            where: { id: BigInt(r.id) },
+            data: { goodName: r.to },
+          }),
+        ),
+      );
+    }
+    return { applied: !opts.dryRun, renamed: renames.length, renames, unmapped };
+  }
+
   /**
    * Walk the category tree and return the requested id + all of its
    * descendants. We use a level-by-level BFS to keep the queries small
@@ -606,6 +733,48 @@ export class GoodsService {
     return ids;
   }
 
+  /**
+   * 写路径名称兜底：规范化后仍为纯款号（如 `PLTK016`，SDS 部分链接名只有款号）
+   * 时，用主链接 SDS 分类名（形如 `PLTK016 童装纯色插肩短袖T恤`）补成「描述名 款号」。
+   * 非纯款号名不做任何额外查询。
+   */
+  private async resolveGoodName(
+    db: Pick<PrismaService, 'category'>,
+    rawName: string,
+    sdsCategoryId: string | null | undefined,
+  ): Promise<string> {
+    const normalized = cleanGoodDisplayName(rawName);
+    if (!isPureSkuGoodName(normalized) || !sdsCategoryId) return normalized;
+    const category = await db.category.findUnique({
+      where: { sdsCategoryId },
+      select: { categoryName: true },
+    });
+    return describePureSkuGoodName(normalized, category?.categoryName);
+  }
+
+  /** 商品主链接（可为本次切换后的）的 sdsCategoryId；无链接或未分类返回 null */
+  private async sdsCategoryIdForGood(
+    goodId: bigint,
+    overrideOriginGoodId?: number,
+  ): Promise<string | null> {
+    let originGoodId: bigint | null = null;
+    if (overrideOriginGoodId !== undefined) {
+      originGoodId = BigInt(overrideOriginGoodId);
+    } else {
+      const good = await this.prisma.good.findUnique({
+        where: { id: goodId },
+        select: { originGoodId: true },
+      });
+      originGoodId = good?.originGoodId ?? null;
+    }
+    if (originGoodId === null) return null;
+    const og = await this.prisma.originGood.findUnique({
+      where: { id: originGoodId },
+      select: { sdsCategoryId: true },
+    });
+    return og?.sdsCategoryId ?? null;
+  }
+
   private async ensureOriginGood(id: number) {
     const og = await this.prisma.originGood.findUnique({
       where: { id: BigInt(id) },