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/ErrorDialogs/UnauthorizedDialog.tsx

@@ -3,10 +3,12 @@ import { DialogFooter, DialogHeader, DialogTitle } from '@/components/ui/dialog'
 import { Button } from '@/components/ui/button';
 import { Ban } from 'lucide-react';
 import { useAuth } from 'hooks/useAuth';
+import { useTranslation } from '@/components/locales';
 import type { ErrorDialogsProps } from './index';
 
 export const UnauthorizedDialog = ({ setApiError }: ErrorDialogsProps) => {
   const { signout } = useAuth();
+  const { t } = useTranslation();
   const onOpenChange = (value: boolean) => {
     if (!value) {
       setApiError(null);
@@ -20,14 +22,16 @@ export const UnauthorizedDialog = ({ setApiError }: ErrorDialogsProps) => {
         <DialogHeader>
           <DialogTitle className="flex items-center gap-10">
             <Ban className="h-12 w-12 text-red-500" />
-            Invalid Credentials
+            {t('error.unauthorized.title')}
           </DialogTitle>
-          <DialogDescription className="flex flex-col gap-4 py-5">Your access token has expired</DialogDescription>
+          <DialogDescription className="flex flex-col gap-4 py-5">
+            {t('error.unauthorized.description')}
+          </DialogDescription>
         </DialogHeader>
-        <p>Please Signin again</p>
+        <p>{t('error.unauthorized.hint')}</p>
         <DialogFooter>
           <Button type="submit" onClick={() => onOpenChange(false)}>
-            Ok
+            {t('button.ok')}
           </Button>
         </DialogFooter>
       </DialogContent>