feat:增加提醒事项

lib/models/todo.dart

@@ -30,6 +30,7 @@ class Todo extends HiveObject {
   late DateTime updateTime;
 
   TodoPriority get priority => TodoPriority.values[priorityIndex];
+
   set priority(TodoPriority value) => priorityIndex = value.index;
 
   Todo({
@@ -43,7 +44,7 @@ class Todo extends HiveObject {
     DateTime? updateTime,
   }) {
     // 简单时间戳ID
-    this.id = id ?? DateTime.now().millisecondsSinceEpoch;
+    this.id = id ?? DateTime.now().millisecondsSinceEpoch ~/ 1000;
     this.priorityIndex = priority.index;
     this.createTime = createTime ?? DateTime.now();
     this.updateTime = updateTime ?? DateTime.now();
@@ -70,8 +71,8 @@ class Todo extends HiveObject {
 
   static Todo getEmpty() {
     return Todo(
-      id: DateTime.now().millisecondsSinceEpoch,
-      title: '',
+      id: DateTime.now().millisecondsSinceEpoch ~/ 1000,
+      title: '日常待办',
       content: '',
       isCompleted: false,
       dueDate: null,