feat: add admin inventory CSV export

apps/api/src/modules/exports/routes/admin-export-routes.js

@@ -26,4 +26,15 @@ export async function registerAdminExportRoutes(app, options) {
       .header('content-disposition', 'attachment; filename="inventory.json"')
       .send(JSON.stringify(data));
   });
+
+  app.get('/exports/inventory.csv', async (request, reply) => {
+    const data = await adminExportService.inventoryCsv({
+      sellerId: request.admin.sellerId,
+    });
+
+    return reply
+      .type('text/csv; charset=utf-8')
+      .header('content-disposition', 'attachment; filename="inventory.csv"')
+      .send(data);
+  });
 }

apps/api/src/modules/exports/services/admin-export-service.js

@@ -1,10 +1,28 @@
 import { toAdminInventoryItemDto } from '@pokemon-inventory/contracts/inventory';
 
 export function createAdminExportService({ inventoryItemService }) {
+  async function inventoryRows(sellerId) {
+    const inventoryItems = await inventoryItemService.listBySellerId(sellerId);
+    return inventoryItems.map(toAdminInventoryItemDto);
+  }
+
   return {
     async inventoryJson({ sellerId }) {
-      const inventoryItems = await inventoryItemService.listBySellerId(sellerId);
-      return inventoryItems.map(toAdminInventoryItemDto);
+      return inventoryRows(sellerId);
+    },
+
+    async inventoryCsv({ sellerId }) {
+      const rows = await inventoryRows(sellerId);
+      const columns = ['id', 'productId', 'conditionId', 'status', 'notes', 'createdAt', 'updatedAt'];
+      return [
+        columns.join(','),
+        ...rows.map((row) => columns.map((column) => escapeCsvValue(row[column])).join(',')),
+      ].join('\r\n');
     },
   };
 }
+
+function escapeCsvValue(value) {
+  const text = value == null ? '' : String(value);
+  return `"${text.replaceAll('"', '""')}"`;
+}