fix: corrige erros de sintaxe ES6 - tudo para IIFE

- Converte logger.js para IIFE (remove export)
- Converte state.js para IIFE (remove export)
- Remove imports de app.js
- Corrige referências aos scripts de teste removidos
- Adiciona scripts de teste corretos

public/js/utils/logger.js

@@ -2,15 +2,15 @@
  * Logger com níveis de debug
  * Substitui console.log dispersos pelo código
  */
-const Logger = (function() {
-    const LEVELS = {
+var Logger = (function() {
+    var LEVELS = {
         debug: 0,
         info: 1,
         warn: 2,
         error: 3
     };
     
-    let currentLevel = LEVELS.info;
+    var currentLevel = LEVELS.info;
     
     function setLevel(level) {
         if (LEVELS[level] !== undefined) {
@@ -22,26 +22,26 @@ const Logger = (function() {
         return LEVELS[level] >= currentLevel;
     }
     
-    function formatMessage(level, ...args) {
-        const timestamp = new Date().toISOString().slice(11, 19);
-        return `[${timestamp}] [${level.toUpperCase()}]`;
+    function formatMessage(level) {
+        var timestamp = new Date().toISOString().slice(11, 19);
+        return '[' + timestamp + '] [' + level.toUpperCase() + ']';
     }
     
     return {
-        debug: function(...args) {
-            if (shouldLog('debug')) console.debug(formatMessage('debug', ...args), ...args);
+        debug: function() {
+            if (shouldLog('debug')) console.debug(formatMessage('debug'), arguments);
         },
         
-        info: function(...args) {
-            if (shouldLog('info')) console.info(formatMessage('info', ...args), ...args);
+        info: function() {
+            if (shouldLog('info')) console.info(formatMessage('info'), arguments);
         },
         
-        warn: function(...args) {
-            if (shouldLog('warn')) console.warn(formatMessage('warn', ...args), ...args);
+        warn: function() {
+            if (shouldLog('warn')) console.warn(formatMessage('warn'), arguments);
         },
         
-        error: function(...args) {
-            if (shouldLog('error')) console.error(formatMessage('error', ...args), ...args);
+        error: function() {
+            if (shouldLog('error')) console.error(formatMessage('error'), arguments);
         },
         
         setLevel: setLevel,
@@ -56,5 +56,4 @@ const Logger = (function() {
     };
 })();
 
-window.Logger = Logger;
-export default Logger;
+window.Logger = Logger;