fix

app/dashboard/categories/page.tsx

@@ -88,7 +88,19 @@ export default function CategoriesPage() {
     e.preventDefault();
     setSaving(true);
     try {
+      // Playlist categories live in the music_categories table, so their writes
+      // go to /music-categories (image is the `image` field, not `icon`).
+      const targetType = editing ? editing.type : type;
+      if (targetType === "playlist") {
+        const body = toFormData({ name, description, order, image: icon });
         if (editing) {
+          await apiFetch(`/music-categories/${editing.id}`, { method: "POST", body });
+          toast.success("دسته‌بندی ویرایش شد.");
+        } else {
+          await apiFetch("/music-categories", { method: "POST", body });
+          toast.success("دسته‌بندی افزوده شد.");
+        }
+      } else if (editing) {
         // Icon is a file, so update goes through POST + Laravel method spoofing.
         const body = toFormData({
           _method: "PUT",
@@ -120,7 +132,11 @@ export default function CategoriesPage() {
     if (!deleting) return;
     setRemoving(true);
     try {
-      await apiFetch(`/categories/${deleting.id}`, { method: "DELETE" });
+      const path =
+        deleting.type === "playlist"
+          ? `/music-categories/${deleting.id}`
+          : `/categories/${deleting.id}`;
+      await apiFetch(path, { method: "DELETE" });
       toast.success("دسته‌بندی حذف شد.");
       setDeleting(null);
       reload();