feat: add product provider mappings

apps/api/tests/http/provider-mapping-routes.test.js

@@ -0,0 +1,29 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+
+import { buildApp } from '../../src/app/build-app.js';
+
+test('protects provider mapping writes and scopes mappings to the seller', async (testContext) => {
+  let received;
+  const app = buildApp({
+    authenticateAdmin: async () => ({ sellerId: 'seller-1' }),
+    authorizeUnsafeRequest: async () => {},
+    providerMappingService: {
+      async create(input) { received = input; return { id: 'mapping-1', ...input, status: 'ACTIVE' }; },
+      async list() { return []; },
+      async disable() { return { id: 'mapping-1', status: 'DISABLED' }; },
+    },
+  });
+  testContext.after(() => app.close());
+
+  const response = await app.inject({
+    method: 'POST',
+    url: '/api/v1/admin/products/product-1/provider-mappings',
+    headers: { 'x-csrf-token': 'csrf' },
+    payload: { providerId: 'fixture', mappingType: 'PRODUCT', externalIdentifier: 'ext-1' },
+  });
+
+  assert.equal(response.statusCode, 201);
+  assert.equal(received.sellerId, 'seller-1');
+  assert.equal(response.json().data.providerId, 'fixture');
+});