fix(bom-costing): fetch stored images for realtime estimates

furniture-3d-system/src/server/services/bom-costing/bom-costing-1688-image-search.test.ts

@@ -5,6 +5,7 @@ import {
   canonicalAlibaba1688Resource,
   extractAlibaba1688AkKeys,
   getBomCosting1688ImageSearchConfig,
+  resolveBomCostingImageSearchSourceUrl,
   type BomCosting1688ImageSearchConfig,
 } from './bom-costing-1688-image-search'
 
@@ -50,6 +51,13 @@ describe('Alibaba 1688 CSK signing', () => {
     }
   })
 
+  it('turns only the public same-origin storage route into an absolute image URL', () => {
+    expect(resolveBomCostingImageSearchSourceUrl('/api/storage/object?key=prod%2Fsku.webp')).toEqual(
+      new URL('https://cp.jiansun.vip/api/storage/object?key=prod%2Fsku.webp'),
+    )
+    expect(() => resolveBomCostingImageSearchSourceUrl('/api/auth/me')).toThrow('竞品链接格式不正确')
+  })
+
   it('sorts canonical query pairs and signs exactly the body sent to the gateway', () => {
     expect(canonicalAlibaba1688Resource('https://skills-gateway.1688.com/api/find_product/1.0.0?z=2&a=b&a=a')).toBe(
       '/api/find_product/1.0.0?a=a&a=b&z=2',
@@ -186,6 +194,36 @@ describe('BomCosting1688ImageSearchService', () => {
     expect(JSON.parse(request?.body ?? '{}')).not.toHaveProperty('imageUrl')
   })
 
+  it('fetches a stored same-origin product image through the public application URL', async () => {
+    const imageResponse = {
+      ok: true,
+      status: 200,
+      headers: new Headers({ 'content-type': 'image/jpeg' }),
+      arrayBuffer: async () => Buffer.from('image-bytes'),
+    } as unknown as Response
+    const apiResponse = {
+      ok: true,
+      status: 200,
+      text: async () => JSON.stringify({ success: true, model: { count: 0, data: [] } }),
+    } as unknown as Response
+    const fetch = jest.fn()
+      .mockResolvedValueOnce(imageResponse)
+      .mockResolvedValueOnce(apiResponse)
+    const service = new BomCosting1688ImageSearchService({
+      getConfig: () => config,
+      fetch,
+      now: () => new Date('2026-08-16T10:00:00.000Z'),
+      randomBytes: () => Buffer.from([1, 2, 3, 4]),
+    })
+
+    await expect(service.findRealtimeQuote({
+      imageUrl: '/api/storage/object?key=prod%2Fbom-costing%2Fsku.webp',
+    })).resolves.toMatchObject({ status: 'NO_COMPARABLE_OFFER' })
+    expect(fetch.mock.calls[0]?.[0]).toEqual(
+      new URL('https://cp.jiansun.vip/api/storage/object?key=prod%2Fbom-costing%2Fsku.webp'),
+    )
+  })
+
   it('degrades without a hidden browser fallback when the service is not configured', async () => {
     const fetch = jest.fn()
     const service = new BomCosting1688ImageSearchService({

furniture-3d-system/src/server/services/bom-costing/bom-costing-1688-image-search.ts

@@ -10,6 +10,7 @@ import type {
 
 const OFFICIAL_IMAGE_SEARCH_ENDPOINT = 'https://skills-gateway.1688.com/api/find_product/1.0.0'
 const IMAGE_SEARCH_PATH = '/api/find_product/1.0.0'
+const DEFAULT_APPLICATION_ORIGIN = 'https://cp.jiansun.vip'
 const CSK_SIGNATURE_VERSION = '1.7.0'
 const DEFAULT_IMAGE_MAX_BYTES = 5 * 1024 * 1024
 const DEFAULT_TIMEOUT_MS = 45_000
@@ -167,6 +168,25 @@ export function getBomCosting1688ImageSearchConfig(): BomCosting1688ImageSearchC
   }
 }
 
+/**
+ * Source snapshots keep object-storage links as same-origin relative paths.
+ * The server-side image-search request needs an absolute URL, but must never
+ * turn arbitrary relative input into an internal-network request.  Only the
+ * public storage-object route is eligible for this conversion.
+ */
+export function resolveBomCostingImageSearchSourceUrl(rawValue: string): URL {
+  const trimmed = rawValue.trim()
+  if (trimmed.startsWith('/api/storage/object?')) {
+    const configuredOrigin = (
+      process.env.NEXT_PUBLIC_APP_URL ??
+      process.env.NEXTAUTH_URL ??
+      DEFAULT_APPLICATION_ORIGIN
+    ).trim()
+    return parseSafeCompetitorUrl(new URL(trimmed, configuredOrigin).toString())
+  }
+  return parseSafeCompetitorUrl(trimmed)
+}
+
 const defaultGateway: BomCosting1688ImageSearchGateway = {
   getConfig: getBomCosting1688ImageSearchConfig,
   fetch: (...args) => fetch(...args),
@@ -502,7 +522,7 @@ export class BomCosting1688ImageSearchService {
     }
 
     try {
-      const imageUrl = parseSafeCompetitorUrl(sourceImageUrl)
+      const imageUrl = resolveBomCostingImageSearchSourceUrl(sourceImageUrl)
       const imageResponse = await this.gateway.fetch(imageUrl, {
         method: 'GET',
         headers: { Accept: 'image/avif,image/webp,image/png,image/jpeg,image/*;q=0.8' },