Add ADM.hr store config (cheerio, 24 products per page)

Croatian electronics retailer. Uses .product-grid.product-item
containers, h2.title for names, .price for prices. Static HTML,
no JS rendering needed.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

stores/adm-hr.yaml

@@ -0,0 +1,13 @@
+name: ADM.hr
+base_url: https://www.adm.hr
+search_url: https://www.adm.hr/Search/?fs=1&term={query}
+category: Electronics
+currency: EUR
+test_query: logitech
+
+selectors:
+  container: ".product-grid.product-item"
+  name: "h2.title a"
+  price: ".price"
+  link: ".product-image a"
+  image: ".product-image img"