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/website/app/components/TrustSection.vue

@@ -1,6 +1,6 @@
 <template>
-  <section class="w-full bg-inkreach-homepage-2 flex flex-col justify-center items-center gap-6 lg:gap-10 p-6 lg:p-10 py-12 lg:py-0 lg:h-138">
-    <div class="flex gap-2 text-2xl md:text-4xl lg:text-5xl text-center">全球5000+卖家信赖我们的平台</div>
+  <section class="trust-section w-full bg-inkreach-homepage-2 flex flex-col justify-center items-center gap-6 lg:gap-10 p-6 lg:p-10 py-12 lg:py-0 lg:h-138">
+    <div class="flex gap-2 text-[48px] font-extrabold md:text-4xl lg:text-5xl text-center">全球5000+卖家信赖我们的平台</div>
 
     <div class="grid grid-cols-2 md:grid-cols-4 gap-4 lg:gap-14 w-full max-w-5xl">
       <div
@@ -10,11 +10,11 @@
       >
         <div class="bg-inkreach-homepage-3">
           <div class="text-lg lg:text-2xl flex flex-col gap-1 lg:gap-2 p-3 lg:p-5">
-            <div>{{ item.value }}</div>
+            <div class="trust-stat-value text-primary font-black">{{ item.value }}</div>
             <div>{{ item.label }}</div>
           </div>
         </div>
-        <div class="relative -top-6 lg:-top-10">
+        <div class="trust-illustration relative -top-6 lg:-top-10">
           <img :src="item.icon" :alt="item.label" />
         </div>
       </div>
@@ -30,3 +30,10 @@ const stats = [
   { value: '24H', label: '急速发货', icon: '/极速发货.png' },
 ];
 </script>
+
+<style scoped>
+@media (min-width: 1024px) {
+  .trust-section { height: 600px; }
+  .trust-illustration { margin-bottom: -40px; }
+}
+</style>