feat: add Todo seed data for task management

Author: hotlong

examples/app-todo/src/data/index.ts

@@ -0,0 +1,21 @@
+// Copyright (c) 2025 ObjectStack. Licensed under the Apache-2.0 license.
+
+import { defineDataset } from '@objectstack/spec/data';
+import { Task } from '../objects/task.object';
+
+const tasks = defineDataset(Task, {
+  mode: 'upsert',
+  externalId: 'subject',
+  records: [
+    { subject: 'Learn ObjectStack',           status: 'completed',   priority: 'high',   category: 'work' },
+    { subject: 'Build a cool app',            status: 'in_progress', priority: 'normal', category: 'work',     due_date: new Date(Date.now() + 86400000 * 3) },
+    { subject: 'Review PR #102',              status: 'completed',   priority: 'high',   category: 'work' },
+    { subject: 'Write Documentation',         status: 'not_started', priority: 'normal', category: 'work',     due_date: new Date(Date.now() + 86400000) },
+    { subject: 'Fix Server bug',              status: 'waiting',     priority: 'urgent', category: 'work' },
+    { subject: 'Buy groceries',               status: 'not_started', priority: 'low',    category: 'shopping', due_date: new Date() },
+    { subject: 'Schedule dentist appointment',status: 'not_started', priority: 'normal', category: 'health',   due_date: new Date(Date.now() + 86400000 * 7) },
+    { subject: 'Pay utility bills',           status: 'not_started', priority: 'high',   category: 'finance',  due_date: new Date(Date.now() + 86400000 * 2) },
+  ],
+});
+
+export const TodoSeedData = [tasks];