feat(admin): server-safe StatusCard and Import hub polish

Split OnlineUsersWidget from StatusCard, decouple ad delete button, sync badge import to ExternalTexts+WebsiteBadges, add Import section hub with cancelable SSE jobs and upload SQL option.

Co-authored-by: Cursor <[email protected]>

src/app/admin/ads/ads-table.tsx

@@ -84,38 +84,3 @@ export function AdsTable({ ads }: { ads: AdRow[] }) {
 		</>
 	);
 }
-
-export function EditAdDeleteButton({ id }: { id: string }) {
-	const t = useTranslations("pages.admin.ads");
-	const { run, isPending } = useServerAction();
-	const { confirm, dialog: confirmDialog } = useConfirmDialog();
-
-	async function handleDelete() {
-		const ok = await confirm({
-			title: t("delete"),
-			description: t("confirmDelete"),
-			confirmLabel: t("delete"),
-			cancelLabel: t("form.cancel"),
-		});
-		if (!ok) return;
-		run(() => deleteAd({ id }), {
-			successMessage: t("deleteSuccess"),
-			errorMessage: t("deleteError"),
-			redirectTo: "/admin/ads",
-		});
-	}
-
-	return (
-		<>
-			{confirmDialog}
-			<Button
-				type="button"
-				variant="destructive"
-				disabled={isPending}
-				onClick={handleDelete}
-			>
-				{t("form.deleteAd")}
-			</Button>
-		</>
-	);
-}