fix: scheduler task UUID mismatch causing Task not found errors

webui/components/modals/scheduler/scheduler-store.js

@@ -944,7 +944,7 @@ const schedulerStoreModel = {
     // Smart merge: preserve object references to prevent UI flickering
     const taskMap = new Map(this.tasks.map((t) => [t.uuid, t]));
     this.tasks = sidebarTasks.map((sidebarTask) => {
-      const taskId = sidebarTask.uuid || sidebarTask.id;
+      const taskId = sidebarTask.uuid || sidebarTask.id || sidebarTask.context_id;
       const existing = taskMap.get(taskId);
       if (existing) {
         // Update existing object in-place if different

webui/components/sidebar/tasks/tasks-store.js

@@ -36,12 +36,12 @@ const model = {
 
   // Returns true if a task with the given id exists in the current list
   contains(taskId) {
-    return Array.isArray(this.tasks) && this.tasks.some((t) => t?.id === taskId);
+    return Array.isArray(this.tasks) && this.tasks.some((t) => t?.uuid === taskId);
   },
 
   // Convenience: id of the first task in the current list (or empty string)
   firstId() {
-    return (Array.isArray(this.tasks) && this.tasks[0]?.id) || "";
+    return (Array.isArray(this.tasks) && this.tasks[0]?.uuid) || "";
   },
 
   // Action methods for task management

webui/css/modals.css

@@ -78,7 +78,7 @@ some classes like modal-header are shared between the old and the new system */
 /* Modal Header */
 .modal-header {
   display: grid;
-  grid-template-columns: 40fr 0.5fr;
+  grid-template-columns: 1fr auto;
   align-items: center;
   justify-content: space-between;
   padding: 0.5rem 1.5rem 0.5rem 2rem;