Fix all ESLint errors: remove unused imports, replace any types

- Remove ~60 unused imports and variables across 88 files
- Replace ~80 `any` type annotations with proper types (unknown,
  Record<string, unknown>, or specific types)
- Prefix unused callback args with underscore
- Fix unescaped JSX entities
- Lint now passes cleanly (0 errors, 2 intentional img warnings)

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

src/components/admin/queue-overview.tsx

@@ -38,7 +38,7 @@ export function QueueOverview({ queues }: QueueOverviewProps) {
   const params = useParams<{ portSlug: string }>();
 
   function handleQueueClick(queueName: string) {
-    router.push(`/${params.portSlug}/admin/monitoring/${queueName}` as any);
+    router.push(`/${params.portSlug}/admin/monitoring/${queueName}`);
   }
 
   return (