Function saveTask

da/da.ts:74–86

(task: DeleteTask)

  await db.read();
  
  const index = db.data.tasks.findIndex(t => t.chatId === task.chatId);
  if (index >= 0) {
    db.data.tasks[index] = task;
  } else {
    db.data.tasks.push(task);
  }
  
  await db.write();
};

// 删除任务
const removeTask = async (chatId: string) => {
  if (!db) await initDatabase();
  await db.read();
  
  db.data.tasks = db.data.tasks.filter(t => t.chatId !== chatId);