refactor(build): restructure plugin processing

build/utils/plugin.js

@@ -0,0 +1,25 @@
+/*
+Copyright 2026 Seekra
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+const runPlugin = async function runPlugin (plugin) {
+    const result = plugin();
+    if (result instanceof Promise) return await result;
+    else return result;
+};
+
+export const processPlugin = async function processPlugin (plugin) {
+    await runPlugin(plugin);
+};