feat: add admin inventory Excel export

apps/api/tests/application/admin-export-service.test.js

@@ -52,3 +52,18 @@ test('exports inventory as escaped CSV rows', async () => {
     '"item-1","product-1","condition-1","ACTIVE","Front, ""clean""\nback","",""',
   ].join('\r\n'));
 });
+
+test('exports inventory as an escaped Excel XML workbook', async () => {
+  const service = createAdminExportService({
+    inventoryItemService: {
+      async listBySellerId() {
+        return [{ id: 'item-1', productId: 'product-1', conditionId: 'condition-1', status: 'ACTIVE', notes: 'A <note>' }];
+      },
+    },
+  });
+
+  const workbook = await service.inventoryExcel({ sellerId: 'seller-1' });
+  assert.match(workbook, /Excel\.Sheet/);
+  assert.match(workbook, /A &lt;note&gt;/);
+  assert.match(workbook, /<Cell ss:StyleID="Header"><Data ss:Type="String">id<\/Data><\/Cell>/);
+});

apps/api/tests/http/admin-export-routes.test.js

@@ -80,3 +80,23 @@ test('downloads seller-scoped inventory CSV for an authenticated admin', async (
   assert.equal(response.headers['content-disposition'], 'attachment; filename="inventory.csv"');
   assert.equal(response.body, 'id,status\r\n"item-1","ACTIVE"');
 });
+
+test('downloads seller-scoped inventory Excel XML for an authenticated admin', async (testContext) => {
+  const app = buildApp({
+    authenticateAdmin: async () => ({ sellerId: 'seller-1' }),
+    adminExportService: {
+      async inventoryExcel({ sellerId }) {
+        assert.equal(sellerId, 'seller-1');
+        return '<?xml version="1.0"?><Workbook />';
+      },
+    },
+  });
+  testContext.after(() => app.close());
+
+  const response = await app.inject({ method: 'GET', url: '/api/v1/admin/exports/inventory.xls' });
+
+  assert.equal(response.statusCode, 200);
+  assert.equal(response.headers['content-type'], 'application/vnd.ms-excel; charset=utf-8');
+  assert.equal(response.headers['content-disposition'], 'attachment; filename="inventory.xls"');
+  assert.equal(response.body, '<?xml version="1.0"?><Workbook />');
+});