Chris Lu 8b61fd77b5 s3api: ensure MD5 is calculated or reused during CopyObject (#8163) ...

* s3api: ensure MD5 is calculated or reused during CopyObject

Fixes #8155
- Capture and reuse source MD5 for direct copies
- Calculate MD5 for small inline objects during copy

* s3api: refactor encryption logic and safe MD5 copying

- Extract duplicated bucket default encryption logic into helper
- Use safe append copy for MD5 slice to avoid shared modifications

* refactor

* avoids unnecessary MD5 recalculations for small files

2026-01-29 12:53:38 -08:00

100 KiB

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