feat(catalog): add auto-category wizard with live preview and smart suggestions

- Add AutoCategoryDialog: pick furni (or empty page), suggest caption/icon/layout, live preview
- Add createAutoCategory server action (page + offers in one export) with CatalogKind
- Extend furni search API with interactionType
- Share ShopTile and refactor inline-editor/items-shop-preview to use it
- Add suggestion heuristics (suggestCategoryName/dIcon/layout) with tests
- Add autoCategory translations (en/nl)

src/messages/en.json

@@ -2157,6 +2157,47 @@
 						"clubHint": "Restricts access to users with an HC subscription.",
 						"yes": "Yes",
 						"no": "No"
+					},
+					"preview": {
+						"label": "Live catalog preview",
+						"title": "Live preview",
+						"on": "On",
+						"off": "Off",
+						"untitled": "Untitled page",
+						"noItems": "No offers on this page yet",
+						"items": "offer(s)",
+						"disabledHint": "This page is disabled — players cannot see it.",
+						"suggestedLayout": "Better layout suggested",
+						"suggestedLayoutReason": "This page {reason}. Switch to “{layout}” to match players’ expectations.",
+						"applyLayout": "Apply layout"
+					},
+					"autoCategory": {
+						"title": "Auto-Category",
+						"itemsBadge": "{count} items",
+						"fromFurni": "From furni",
+						"emptyPage": "Empty page",
+						"searchPlaceholder": "Search furni by name or classname…",
+						"noResults": "No results",
+						"added": "Added",
+						"price": "Price",
+						"free": "Free",
+						"setPrice": "Set a price",
+						"credits": "Credits",
+						"points": "Points",
+						"pointsType": "Type",
+						"parent": "Parent",
+						"root": "Catalog root",
+						"caption": "Caption",
+						"captionPlaceholder": "e.g. Chairs, Wallpapers…",
+						"icon": "Icon",
+						"pickIcon": "Pick icon",
+						"layout": "Layout",
+						"suggestedLayout": "Suggested: {layout}",
+						"enabled": "Enabled",
+						"visible": "Visible",
+						"cancel": "Cancel",
+						"create": "Create",
+						"createWithItems": "Create ({count} items)"
 					}
 				},
 				"bulk": {