feat(ui): add shared skeleton component and update CLI status

- Add reusable SkeletonPulse component to replace 4 duplicate definitions
- Update CLI status components to use shared skeleton
- Simplify CLI status components by using React Query hooks

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/ui/src/components/views/settings-view/cli-status/opencode-cli-status.tsx

@@ -1,5 +1,6 @@
 import { Button } from '@/components/ui/button';
 import { Badge } from '@/components/ui/badge';
+import { SkeletonPulse } from '@/components/ui/skeleton';
 import { CheckCircle2, AlertCircle, RefreshCw, Bot, Cloud } from 'lucide-react';
 import { cn } from '@/lib/utils';
 import type { CliStatus } from '../shared/types';
@@ -74,10 +75,6 @@ interface OpencodeCliStatusProps {
   onRefresh: () => void;
 }
 
-function SkeletonPulse({ className }: { className?: string }) {
-  return <div className={cn('animate-pulse bg-muted/50 rounded', className)} />;
-}
-
 export function OpencodeCliStatusSkeleton() {
   return (
     <div