Fix: Batch and File user level permissions

[Sameerlite]

Relevant issues

Fix: Batch cancellation ownership bug
Fix File access permissions for .retreive and .delete
Fix Only allowed to call routes: ['llm_api_routes']. Tried to call ro…
Fix: Encoding cancel batch response
Add tests for user level permissions on file and batch access

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
• 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

CI (LiteLLM team)

CI status guideline:

• 50-55 passing tests: main is stable with minor issues.
• 45-49 passing tests: acceptable but needs attention
• <= 40 passing tests: unstable; be careful with your merges and assess the risk.

• Branch creation CI run
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• CI run for the last commit
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• Merge / cherry-pick CI run
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Type

🐛 Bug Fix
🧹 Refactoring

Changes

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Project	Deployment	Review	Updated (UTC)
litellm	Error		Jan 29, 2026 7:19am