fix(s3): enforce presigned POST policy conditions with case-insensitive field lookup#2

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Meemaw wants to merge 3 commits intomainfrom

devin/1775299142-s3-presigned-post-policy-conditions

Commits on Apr 8, 2026

fix(s3): check both 'Policy' and 'policy' field names in presigned POST

devin-ai-integration[bot]
and
Meemaw
committed
test(s3): add tests for uppercase 'Policy' field name in presigned POST

devin-ai-integration[bot]
and
Meemaw
committed
fix(s3): use case-insensitive field lookup for presigned POST policy validation

devin-ai-integration[bot]
and
Meemaw
committed