ui.* catalog and the dialogs: error dialogs, confirm and paper dialogs keyed

Establishes the ui.* namespace for phases 2 and 3. Both catalogs complete, so the
key-parity test holds. Two English copy defects fixed while keying, because the
Portuguese must not inherit them: 'Your are not authorized' -> 'You are', and
'Please Signin again' -> 'Please sign in again'.

The server's own message in ServerError/CustomError stays verbatim — it is a
response, not UI copy (D1).

src/workspaces/components/Dialogs/PaperDialog/PaperDialog.tsx

@@ -2,6 +2,7 @@ import type { ReactNode } from 'react';
 import { Dialog, DialogOverlay, DialogPortal } from '@/components/ui/dialog';
 import * as DialogPrimitive from '@radix-ui/react-dialog';
 import { cardStyle } from '@/components/Card';
+import { useTranslation } from '@/components/locales';
 
 type PaperDialogProps = {
   open: boolean;
@@ -11,6 +12,8 @@ type PaperDialogProps = {
 };
 
 export const PaperDialog = ({ open, onOpenChange, onOpenAutoFocus, children }: PaperDialogProps) => {
+  const { t } = useTranslation();
+
   const handleOpenAutoFocus = (ev: Event) => {
     ev.preventDefault();
     onOpenAutoFocus?.(ev);
@@ -25,9 +28,9 @@ export const PaperDialog = ({ open, onOpenChange, onOpenAutoFocus, children }: P
           className="fixed left-[50%] top-[50%] z-[600] grid w-full max-w-md translate-x-[-50%] translate-y-[-50%] gap-4 border-2 border-duck-dark/30 text-duck-dark p-6 shadow-lg duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-lg"
           style={cardStyle()}
         >
-          <DialogPrimitive.Close className="absolute right-4 top-4 rounded-sm opacity-70 ring-offset-background transition-opacity hover:opacity-100 focus:outline-hidden focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none data-[state=open]:bg-accent data-[state=open]:text-muted-foreground">
+          <DialogPrimitive.Close className="absolute end-4 top-4 rounded-sm opacity-70 ring-offset-background transition-opacity hover:opacity-100 focus:outline-hidden focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none data-[state=open]:bg-accent data-[state=open]:text-muted-foreground">
             <span className="h-4 w-4 text-duck-dark">✕</span>
-            <span className="sr-only">Close</span>
+            <span className="sr-only">{t('button.close')}</span>
           </DialogPrimitive.Close>
           {children}
         </DialogPrimitive.Content>