Fix Dutchie scraper to wait for React content to load

- Change waitUntil from 'domcontentloaded' to 'networkidle2' for SPAs
- Add waitForSelector to wait for product elements before parsing
- WordPress plugin: update API endpoints to use hardcoded URL

The scraper was returning 0 products because it wasn't waiting for
React to render the product list. Now it properly waits for either
the product list items or an empty state indicator.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

backend/src/scraper-v2/downloader.ts

@@ -378,9 +378,9 @@ export class Downloader {
         await page.setUserAgent(request.metadata.userAgent);
       }
 
-      // Navigate to page
+      // Navigate to page - use networkidle2 for SPAs like Dutchie
       const navigationPromise = page.goto(request.url, {
-        waitUntil: 'domcontentloaded',
+        waitUntil: 'networkidle2',
         timeout: 60000
       });
 
@@ -390,8 +390,19 @@ export class Downloader {
         throw new Error('Navigation failed - no response');
       }
 
-      // Wait for initial render
-      await page.waitForTimeout(3000);
+      // Wait for React to render product content
+      // Try to wait for products, but don't fail if they don't appear (empty category)
+      try {
+        await page.waitForSelector('[data-testid="product-list-item"], [data-testid="empty-state"]', {
+          timeout: 10000
+        });
+      } catch {
+        // Products might not exist in this category - continue anyway
+        logger.debug('scraper', 'No products found within timeout - continuing');
+      }
+
+      // Additional wait for any lazy-loaded content
+      await page.waitForTimeout(2000);
 
       // Check for lazy-loaded content
       await this.autoScroll(page);