optimize Simple Mode with true dead code elimination

src/js/main.ts

@@ -5,7 +5,15 @@ import { createIcons, icons } from 'lucide';
 import * as pdfjsLib from 'pdfjs-dist';
 import '../css/styles.css';
 
-const hideBrandingSections = () => {
+const init = () => {
+  pdfjsLib.GlobalWorkerOptions.workerSrc = new URL(
+    'pdfjs-dist/build/pdf.worker.min.mjs',
+    import.meta.url
+  ).toString();
+
+  // Handle simple mode - hide branding sections
+  if (__SIMPLE_MODE__) {
+    const hideBrandingSections = () => {
       const nav = document.querySelector('nav');
       if (nav) {
         nav.style.display = 'none';
@@ -73,16 +81,8 @@ const hideBrandingSections = () => {
       if (app) {
         app.style.paddingTop = '2rem';
       }
-};
+    };
 
-const init = () => {
-  pdfjsLib.GlobalWorkerOptions.workerSrc = new URL(
-    'pdfjs-dist/build/pdf.worker.min.mjs',
-    import.meta.url
-  ).toString();
-
-  // Handle simple mode - hide branding sections
-  if (__SIMPLE_MODE__) {
     hideBrandingSections();
   }