* fix(bedrock): send s3BucketOwner on batch input and output data config
Resolve s3_bucket_owner from litellm_params, then optional_params, then
AWS_S3_BUCKET_OWNER and emit it on both S3 data configs so cross-account
batch buckets pass Bedrock ownership validation. Omitted when unset
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
* refactor(bedrock): build batch output config with explicit returns
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
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Co-authored-by: yucheng <yucheng@berri.ai>
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>