0.3.1

What's Changed

SemVer Patch

• Document Principal.init and list the client package and requirements by @the-braveknight in #10

Other Changes

• Document authentication contracts and service security by @the-braveknight in #6
• Clarify explicit user subjects in authentication docs by @the-braveknight in #7
• Link Swift Package Index documentation from README by @the-braveknight in #8
• Align library CI, formatting, and license headers by @the-braveknight in #9

Full Changelog: 0.3.0...0.3.1