fix: guard against null schedule crashing /tasks page

components/VercelChat/dialogs/tasks/TaskDetailsDialogContent.tsx

@@ -95,7 +95,7 @@ const TaskDetailsDialogContent: React.FC<TaskDetailsDialogContentProps> = ({
         />
       ) : (
         <TaskScheduleSection
-          schedule={task.schedule}
+          schedule={task.schedule || ""}
           nextRun={task.next_run || ""}
           isDeleted={isDeleted}
         />

components/VercelChat/tools/tasks/TaskCard.tsx

@@ -78,11 +78,11 @@ const TaskCard: React.FC<TaskCardProps> = ({ task, isDeleted, ownerEmail }) => {
 
       <div className="flex items-center space-x-4">
         <div className="flex items-center space-x-2">
-          {isRecurring(task.schedule) && (
+          {task.schedule && isRecurring(task.schedule) && (
             <Repeat className="h-4 w-4 text-muted-foreground dark:text-muted-foreground flex-shrink-0" />
           )}
           <span className="text-base text-muted-foreground dark:text-muted-foreground">
-            {parseCronToHuman(task.schedule.trim())}
+            {task.schedule ? parseCronToHuman(task.schedule.trim()) : "No schedule"}
           </span>
         </div>
         <div className="flex items-center space-x-2 w-20 justify-end relative">

lib/tasks/isRecurring.ts

@@ -2,6 +2,7 @@
  * Checks if a cron expression represents a recurring schedule (daily, weekly, or monthly)
  */
 export const isRecurring = (cronExpression: string): boolean => {
+  if (!cronExpression) return false;
   try {
     const parts = cronExpression.split(" ");
     if (parts.length >= 5) {

lib/tasks/parseCronToHuman.ts

@@ -1,6 +1,7 @@
 import cronstrue from "cronstrue";
 
 export const parseCronToHuman = (cronExpression: string): string => {
+  if (!cronExpression) return "No schedule";
   try {
     return cronstrue.toString(cronExpression);
   } catch (e) {