[Fix] Use end user budget instead of key budget when creating new team

[yuneng-jiang]

Use user budget instead of key budget when creating new team

Relevant issues

When creating a new team the logic used max_budget which is the key's max budget. This created issues when an org admin with a UI session token tried to create a team with a budget greater than 10 because the UI session token's budget has a hard coded limit of 10. Instead we check against the user's budget which this PR implements

Pre-Submission checklist

Please complete all items before asking a LiteLLM maintainer to review your PR

• I have Added testing in the tests/litellm/ directory, Adding at least 1 test is a hard requirement - see details
• I have added a screenshot of my new test passing locally
• My PR passes all unit tests on make test-unit
• My PR's scope is as isolated as possible, it only solves 1 specific problem

Type

🐛 Bug Fix
✅ Test

Changes

##Screenshot

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Preview	Comments	Updated (UTC)
litellm	Ready	Preview	Comment	Oct 30, 2025 5:54pm

[ishaan-jaff]

this looks wrong