fix: support DeepL pro account

Fix #7648

src/server/api/endpoints/admin/update-meta.ts

@@ -149,6 +149,10 @@ export const meta = {
 			validator: $.optional.nullable.str,
 		},
 
+		deeplIsPro: {
+			validator: $.optional.bool,
+		},
+
 		enableTwitterIntegration: {
 			validator: $.optional.bool,
 		},
@@ -574,6 +578,10 @@ export default define(meta, async (ps, me) => {
 		}
 	}
 
+	if (ps.deeplIsPro !== undefined) {
+		set.deeplIsPro = ps.deeplIsPro;
+	}
+
 	await getConnection().transaction(async transactionalEntityManager => {
 		const meta = await transactionalEntityManager.findOne(Meta, {
 			order: {