refactor(build): restructure plugin processing

build/build.js

@@ -16,6 +16,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+import { processPlugin } from './utils/plugin.js';
 import { readdir } from 'node:fs/promises';
 import { join } from 'node:path';
 import { pathToFileURL } from 'node:url';
@@ -24,6 +25,12 @@ const dir = './build/plugins';
 
 const files = await readdir(dir);
 
+const tryToProcessPlugin = async function tryToProcessPlugin (plugin) {
+    if (typeof plugin.default === 'function') {
+        await processPlugin(plugin.default);
+    }
+};
+
 (await Promise.all(
     files
         .filter((file) => file.endsWith('.js'))
@@ -31,12 +38,5 @@ const files = await readdir(dir);
             import(pathToFileURL(join(dir, file)).href)
         )
 )).forEach(
-    async (plugin) => {
-        try {
-            const result = plugin.default();
-            if (result instanceof Promise) await result;
-        } catch (err) {
-            if (!(err instanceof TypeError)) throw err;
-        }
-    }
+    async (plugin) => tryToProcessPlugin(plugin)
 );