Fix preview filters and button reset on reload

web/templates/index.html

@@ -250,6 +250,8 @@
       try {
         const formData = new FormData();
         formData.append("file", currentFile);
+        formData.append("exclude_rest", document.getElementById("exclude_rest").checked);
+        formData.append("exclude_vacation", document.getElementById("exclude_vacation").checked);
 
         const response = await fetch("/preview", {
           method: "POST",
@@ -350,6 +352,13 @@
       hide("step2");
       show("step-init");
       hide("error");
+      
+      // Stelle sicher, dass der Button aktiv ist
+      const btn = document.querySelector("#step-init button");
+      if (btn) {
+        btn.disabled = false;
+        btn.textContent = "Vorschau laden";
+      }
     }
 
     function showError(message) {