feat(product-center): implement Figma-designed UI, upload module, and website tests

- Redesign website homepage & product-center per Figma (fonts, logos, hero/footer/customer cases)
- Add API upload module (multer) with static serving for uploads/public assets
- Add OriginGood.delisted flag and SDS request retry logic
- Add admin ImageUpload component and goods import/upload flows
- Add vitest suite for website components and composables (32 tests)
- Add skills, docs, plans and PRODUCT.md

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

@@ -193,6 +193,19 @@ describe('PublicService', () => {
     expect(priorities).toEqual(sorted);
   });
 
+  it('returns the SDS product id as the public product id', async () => {
+    const result = await service.getGoods({
+      page: 1,
+      pageSize: 1,
+      countryId: Number(countryId),
+      keyword: `Pub High ${stamp}`,
+    });
+
+    expect(result.items).toHaveLength(1);
+    expect(result.items[0].id).toBe(`pub-sds-${stamp}`);
+    expect(result.items[0].id).not.toBe(goodIds[0].toString());
+  });
+
   it('getGood returns detail and 404 for unknown id', async () => {
     const first = await service.getGoods({
       page: 1,
@@ -201,7 +214,7 @@ describe('PublicService', () => {
       keyword: `Pub `,
     });
     expect(first.items.length).toBe(1);
-    const detail = await service.getGood(BigInt(first.items[0].id));
+    const detail = await service.getGood(goodIds[0]);
     expect(detail.id).toBe(first.items[0].id);
 
     await expect(service.getGood(BigInt(99999999))).rejects.toBeInstanceOf(