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/ConfirmDialog/ConfirmDialog.tsx

@@ -1,6 +1,7 @@
 import { useState } from 'react';
 import { Dialog, DialogContent, DialogHeader, DialogTitle } from '@/components/ui/dialog';
 import { Button } from '@/components/ui/button';
+import { useTranslation } from '@/components/locales';
 
 type ConfirmDialogProps = {
   open: boolean;
@@ -16,8 +17,9 @@ type ConfirmDialogProps = {
 
 export const ConfirmDialog = (props: ConfirmDialogProps) => {
   const [confirming, setConfirming] = useState(false);
+  const { t } = useTranslation();
   const { open, disabled = false, title, description, children } = props;
-  const { onConfirm, onCancel, confirmLabel = 'Confirm', confirmVariant = 'default' } = props;
+  const { onConfirm, onCancel, confirmLabel, confirmVariant = 'default' } = props;
 
   const handleConfirm = async () => {
     setConfirming(true);
@@ -37,16 +39,16 @@ export const ConfirmDialog = (props: ConfirmDialogProps) => {
 
         <div className="mt-6 flex flex-col-reverse gap-2 sm:flex-row sm:justify-end">
           <Button type="button" variant="outline" onClick={onCancel}>
-            Cancel
+            {t('button.cancel')}
           </Button>
           <Button
             type="button"
             variant={confirmVariant}
             onClick={handleConfirm}
             disabled={disabled || confirming}
-            className="sm:ml-2"
+            className="sm:ms-2"
           >
-            {confirmLabel}
+            {confirmLabel ?? t('button.confirm')}
           </Button>
         </div>
       </DialogContent>