chore: add npm-diff.app as user of API

[oBusk]

My little app for comparing npm releases uses Packagephobia to include extra information on the comparison page to show if the installsize has changed between the two releases.

Performs packagephobia for both packages, shows difference between them.

I've been bad with User-Agent until today, when I changed it to this;

https://github.com/oBusk/npm-diff.app/blob/d91f188458ac6eeae1cdc54f8a8e2be7fd81d7aa/src/lib/api/user-agent.ts

[vercel]

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[vercel]

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Project	Deployment	Preview	Updated (UTC)
packagephobia	Ready	Preview	Dec 9, 2025 8:37pm

[oBusk]

Still getting 429 from packagephobia :( Anything I should change?

[styfle]

Fixed, please try again

[oBusk]

Still 429. Want me to change the UA in any way?

[styfle]

Please share the x-vercel-id response header

[oBusk]

'Response Headers': {
    'cache-control': 'private, no-store, max-age=0',
    'content-type': 'text/html; charset=utf-8',
    date: 'Wed, 17 Dec 2025 01:25:46 GMT',
    server: 'Vercel',
    'transfer-encoding': 'chunked',
    'x-vercel-challenge-token': '...',
    'x-vercel-id': 'iad1::1765934746-ZgUTFZwEXF7ezKnotbzp4AmAxDZsbOOZ',
    'x-vercel-mitigated': 'challenge'
  },

[styfle]

Thanks, should be fixed now 👍

[oBusk]

Thanks, should be fixed now 👍

Working! Thanks so much!