Implements server-side encryption capabilities (v0.13.0) including:
- Core Support: SSE-S3 (AES256) and SSE-KMS
- Integration: Added encryption fields to UploadInput, CopyObjectInput, InitiateMultipartUploadInput, and MultipartUploadInput
- Operations: Updated FilePut, FileUpload (POST), CopyObject, and multipart upload flows to support encryption headers
- API: Updated FileDetails (HeadObject) to return ServerSideEncryption and SSEKMSKeyId in DetailsResponse
Testing:
- Configured MinIO with built-in KMS (via MINIO_KMS_SECRET_KEY) in docker-compose.yml to enable SSE-S3 support
- Added comprehensive integration tests verifying headers are correctly sent and returned
- Verified file integrity and encryption status across all upload methods
Updated ROADMAP.md to mark v0.13.0 as completed.
