ed25519 conformance

[qiweiii]

apple swift-crypto does not pass those tests, changed to ed25519-zebra

[github-actions]

The PR correctly replaces swift-crypto with ed25519-zebra to improve Ed25519 conformance, introducing a new Rust FFI crate and updating Swift code accordingly. The changes are solid, but a minor and repetitive syntax error exists in the Swift error handling declarations.

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Review Suggestions

Utils/Sources/Utils/Crypto/Ed25519.swift:16, 29, 62, 75

The function declarations use throws(Error), which is not valid Swift syntax. The typed throw (Error) should be removed, as the compiler infers the error type. For example, on line 16, public init(from seed: Data32) throws(Error) should be corrected to public init(from seed: Data32) throws. This correction should be applied to all function declarations using this invalid syntax.

[codecov]

Codecov Report

❌ Patch coverage is 95.45455% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.69%. Comparing base (411dfd4) to head (99b5a2b).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
Utils/Sources/Utils/Crypto/Ed25519.swift	92.85%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #373      +/-   ##
==========================================
+ Coverage   81.63%   81.69%   +0.05%     
==========================================
  Files         379      380       +1     
  Lines       25903    25965      +62     
==========================================
+ Hits        21147    21212      +65     
+ Misses       4756     4753       -3     

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