Fix redirect loop: tambah sessionStorage guard dan path check yang lebih ketat

public/dashboard/js/dashboard.js

@@ -695,9 +695,19 @@ function initCharts() {
 document.addEventListener('DOMContentLoaded', async () => {
   // Require auth
   if (!Auth.isAuthenticated()) {
-    window.location.href = '../index.php';
+    // Cek apakah sudah di login page untuk mencegah redirect loop
+    const currentPath = window.location.pathname;
+    const isLoginPage = currentPath.includes('index.php');
+    if (!isLoginPage) {
+      // Clear redirect flag jika logout
+      sessionStorage.removeItem('auth_redirect_done');
+      window.location.href = '../index.php';
+    }
     return;
   }
+  
+  // Clear redirect flag saat sudah di dashboard
+  sessionStorage.removeItem('auth_redirect_done');
 
   // Set default date ke hari ini (jangan auto-detect ke tanggal lama)
   const today = new Date().toISOString().split('T')[0];