Localize shared modal, overlay and deployment-progress components.

Localize the confirm modal, delete button, deleting overlays/modal, the
build-progress modal, deployment progress bar/manager and the resource
upgrade modal via a shared components dictionary. Build-phase labels now
resolve from the dictionary; deleting overlays take name/kind and build
their own localized message (callers updated).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/src/components/delete-button-label.tsx

@@ -1,14 +1,16 @@
 'use client';
 
 import { Clock } from 'lucide-react';
+import { useT } from '@/i18n/I18nProvider';
 
-export function DeleteButtonLabel({ loading, label = 'Delete' }: { loading?: boolean; label?: string }) {
+export function DeleteButtonLabel({ loading, label }: { loading?: boolean; label?: string }) {
+  const t = useT();
   if (loading) {
     return (
       <>
-        <Clock className="w-3 h-3 inline animate-spin" /> Deleting…
+        <Clock className="w-3 h-3 inline animate-spin" /> {t.components.deleting}
       </>
     );
   }
-  return <>{label}</>;
+  return <>{label ?? t.common.delete}</>;
 }