feat(form-error-ux): adopt useFormScrollToError + FormErrorSummary across remaining 10 forms

Completes the form-error rollout the prior session shipped on the 6
highest-impact forms (client/interest/yacht/company/berth/expense). Adds
the scroll-to-first-error wrapper + the top-of-form summary banner to:

- src/app/(auth)/login/page.tsx
- src/app/(auth)/reset-password/page.tsx
- src/app/(auth)/set-password/page.tsx
- src/app/(auth)/setup/page.tsx
- src/app/(dashboard)/[portSlug]/invoices/new/page.tsx
- src/components/berths/berth-detail-header.tsx (status-change dialog)
- src/components/companies/add-membership-dialog.tsx
- src/components/invoices/invoice-detail.tsx (record-payment form)
- src/components/reservations/berth-reserve-dialog.tsx
- src/components/yachts/yacht-transfer-dialog.tsx

Each call site: hook wraps handleSubmit, FormErrorSummary renders only
when 2+ errors fire (no visual change otherwise), and per-form `labels`
prop translates field names to human-readable strings. invoice-line-items
is a sub-form via useFormContext, so it inherits from the parent.

1471/1471 vitest, tsc clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/app/(auth)/setup/page.tsx

@@ -12,6 +12,8 @@ import { Input } from '@/components/ui/input';
 import { Label } from '@/components/ui/label';
 import { BrandedAuthShell } from '@/components/shared/branded-auth-shell';
 import { useAuthBranding } from '@/components/shared/auth-branding-provider';
+import { FormErrorSummary } from '@/components/forms/form-error-summary';
+import { useFormScrollToError } from '@/hooks/use-form-scroll-to-error';
 import { apiFetch } from '@/lib/api/client';
 import { cn } from '@/lib/utils';
 
@@ -50,6 +52,7 @@ export default function SetupPage() {
   } = useForm<SetupFormData>({
     resolver: zodResolver(setupSchema),
   });
+  const submitWithScroll = useFormScrollToError(handleSubmit, errors);
 
   useEffect(() => {
     let cancelled = false;
@@ -119,7 +122,16 @@ export default function SetupPage() {
           </p>
         </div>
 
-        <form onSubmit={handleSubmit(onSubmit)} className="space-y-4">
+        <form onSubmit={submitWithScroll(onSubmit)} className="space-y-4">
+          <FormErrorSummary
+            errors={errors}
+            labels={{
+              name: 'Name',
+              email: 'Email',
+              password: 'Password',
+              confirmPassword: 'Confirm password',
+            }}
+          />
           <div className="space-y-1.5">
             <Label htmlFor="setup-name">Your name</Label>
             <Input