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/pages/ParkDetail.tsx

@@ -1,5 +1,7 @@
 import { useState, lazy, Suspense, useEffect } from 'react';
 import { useParams, useNavigate, Link } from 'react-router-dom';
+import { HoverCard, HoverCardContent, HoverCardTrigger } from '@/components/ui/hover-card';
+import { CompanyPreviewCard } from '@/components/preview/CompanyPreviewCard';
 import { Header } from '@/components/layout/Header';
 import { getBannerUrls } from '@/lib/cloudflareImageUtils';
 import { trackPageView } from '@/lib/viewTracking';
@@ -435,12 +437,19 @@ export default function ParkDetail() {
                         <Users className="w-4 h-4 text-muted-foreground" />
                         <div>
                           <div className="font-medium">Operator</div>
-                          <Link 
-                            to={`/operators/${park.operator.slug}`}
-                            className="text-sm text-primary hover:underline"
-                          >
-                            {park.operator.name}
-                          </Link>
+                          <HoverCard openDelay={300}>
+                            <HoverCardTrigger asChild>
+                              <Link 
+                                to={`/operators/${park.operator.slug}`}
+                                className="text-sm text-primary hover:underline"
+                              >
+                                {park.operator.name}
+                              </Link>
+                            </HoverCardTrigger>
+                            <HoverCardContent side="right" className="w-auto">
+                              <CompanyPreviewCard slug={park.operator.slug} />
+                            </HoverCardContent>
+                          </HoverCard>
                         </div>
                       </div>}