Add hover preview cards

Adds hover-preview UX by introducing preview cards for entities and wiring hoverable links:
- Implements CompanyPreviewCard and ParkPreviewCard components plus hooks to fetch preview data
- Adds HoverCard usage to ParkDetail and RideDetail for operator, manufacturer, and designer links
- Creates preview wrappers for manufacturer/designer/operator links and updates related pages to use hover previews
- Includes supporting updates to query keys and preview hooks to fetch minimal data for previews

src/hooks/preview/useCompanyPreview.ts

@@ -0,0 +1,36 @@
+import { useQuery } from '@tanstack/react-query';
+import { supabase } from '@/lib/supabaseClient';
+import { queryKeys } from '@/lib/queryKeys';
+
+/**
+ * Hook to fetch company preview data for hover cards
+ */
+export function useCompanyPreview(slug: string | undefined, enabled = true) {
+  return useQuery({
+    queryKey: queryKeys.companies.detail(slug || ''),
+    queryFn: async () => {
+      if (!slug) throw new Error('Slug is required');
+
+      const { data, error } = await supabase
+        .from('companies')
+        .select(`
+          id,
+          name,
+          slug,
+          company_type,
+          person_type,
+          headquarters_location,
+          founded_year,
+          logo_url
+        `)
+        .eq('slug', slug)
+        .maybeSingle();
+
+      if (error) throw error;
+      return data;
+    },
+    enabled: enabled && !!slug,
+    staleTime: 5 * 60 * 1000, // 5 minutes
+    gcTime: 15 * 60 * 1000, // 15 minutes
+  });
+}

src/hooks/preview/useParkPreview.ts

@@ -0,0 +1,39 @@
+import { useQuery } from '@tanstack/react-query';
+import { supabase } from '@/lib/supabaseClient';
+import { queryKeys } from '@/lib/queryKeys';
+
+/**
+ * Hook to fetch park preview data for hover cards
+ */
+export function useParkPreview(slug: string | undefined, enabled = true) {
+  return useQuery({
+    queryKey: queryKeys.parks.detail(slug || ''),
+    queryFn: async () => {
+      if (!slug) throw new Error('Slug is required');
+
+      const { data, error } = await supabase
+        .from('parks')
+        .select(`
+          id,
+          name,
+          slug,
+          park_type,
+          status,
+          card_image_url,
+          ride_count,
+          coaster_count,
+          average_rating,
+          review_count,
+          location:locations(city, state_province, country)
+        `)
+        .eq('slug', slug)
+        .maybeSingle();
+
+      if (error) throw error;
+      return data;
+    },
+    enabled: enabled && !!slug,
+    staleTime: 5 * 60 * 1000, // 5 minutes
+    gcTime: 15 * 60 * 1000, // 15 minutes
+  });
+}