* fix(auth): align cloud credential loading and expiry with the Python SDKs
* feat(auth): resolve consumer-scoped default identities for AWS and Azure
AwsAuthService::default_chain_credentials and AzureAuthService::identity_token give a consumer the SDK's own default identity without LiteLLM's Bedrock or Azure OpenAI settings. Moved here from #49510 so every shared auth crate change lives in one PR
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* fix(auth): include identity hints in secret snapshots
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Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>