#144 Removing S3 SDK dependency - #171
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hardwood-s3needs two HTTP operations against S3: a suffix-range GET (foropen()) and byte-range GETs (forreadRange()). This does not warrant an 8 MB / 31-JAR dependency on the AWS SDK S3 service client.This design builds S3 support on three layers:
S3Credentials/S3CredentialsProvidertypes inhardwood-s3. Callers supply credentials; Hardwood never resolves them.MessageDigest,Mac).java.net.http.HttpClient, no SDK HTTP abstractions.hardwood-s3has zero external dependencies beyondhardwood-core. An optionalhardwood-aws-authmodule bridgessoftware.amazon.awssdk:authfor users who want the full AWS credential/region chain.