fix(http): handle Close() errors in archive creation

[aturzone]

Previously, errors from zipWriter.Close() and gzWriter.Close() were silently ignored when using defer statements. This could result in corrupted archives being served to users if buffer flush or finalization failed.

Now explicitly checking Close() errors for all archive writers to ensure archives are properly finalized before being sent.

Description

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Additional Details

[gtsteffaniak]

seems like a good change -- lgtm