Recognize Windows zip MIME on import

[JeremyZeng77]

Summary

• recognize application/x-zip-compressed as a zip map import
• keeps Windows/browser zip uploads on the JSZip import path instead of falling through to JSON parsing

Addresses part of #46.

Verification

• git diff --check
• npm run build passes; build reports existing source-map, lint, and bundle-size warnings unrelated to this MIME compatibility fix.

Bounty / payment

• PayPal: https://paypal.me/Jeremytsangchina
• Backup USDT TRC20: TWupTAoFjxR2VmqUUvzhfmUwXVZR6Kvz1Y

[vercel]

Someone is attempting to deploy a commit to the Hytopia Team on Vercel.

A member of the Team first needs to authorize it.

[JeremyZeng77]

Verification note: local
pm run build\ passes for this branch. The visible Vercel status, if present, is blocked by Hytopia team deployment authorization rather than by this patch.