Promise.allSettled

Implement your own version of Promise.allSettled that waits for all promises to settle.

Requirements:

• Return a Promise that resolves when all input promises settle
• Each result object should have a status ('fulfilled' or 'rejected')
• For fulfilled promises, include a value property
• For rejected promises, include a reason property

Example:

const p1 = Promise.resolve(3);
const p2 = Promise.reject('error');

promiseAllSettled([p1, p2]).then(results => {
  console.log(results);
  // [{ status: 'fulfilled', value: 3 }, { status: 'rejected', reason: 'error' }]
});