Normalize whitespace with dotnet format

[okramarenko]

No description provided.

[cursor]

PR Summary

Low Risk
Cosmetic formatting in authentication crypto code with no behavioral diff; risk is limited to merge noise or accidental non-whitespace edits if not verified.

Overview
Applies dotnet format across the vendored Chaos.NaCl Ed25519 sources under SingleStoreConnector.Authentication.Ed25519 (e.g. Ed25519.cs, FieldElement.cs, GroupElement.cs, and the large base.cs lookup table).

The diff is indentation/whitespace only—spaces to tabs (or consistent tab nesting) and minor brace spacing such as } ; → };. No cryptographic constants, APIs, or control flow change.

^{Reviewed by Cursor Bugbot for commit 654db4a. Configure here.}