refactor(frontend): scripts -> utility

packages/frontend/src/utility/check-permissions.ts

@@ -0,0 +1,19 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { instance } from '@/instance.js';
+import { $i } from '@/account.js';
+
+export const notesSearchAvailable = (
+	// FIXME: instance.policies would be null in Vitest
+	// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
+	($i == null && instance.policies != null && instance.policies.canSearchNotes) ||
+	($i != null && $i.policies.canSearchNotes) ||
+	false
+) as boolean;
+
+export const canSearchNonLocalNotes = (
+	instance.noteSearchableScope === 'global'
+);