v4.0.0

What's Changed

This release upgrades LoggingKit to Swift 6 and modernises the entire toolchain.

Breaking Changes

• Minimum deployment targets raised: iOS 18, tvOS 18, watchOS 11, macOS 15
• Swift 6 strict concurrency adopted throughout - LogProvider, LogService, LogCategory, and OSLogProvider are all Sendable and nonisolated

New Features

• DocC documentation - a Getting Started guide and full API reference are now available
• mise replaces Fastlane/jazzy - documentation is built via mise docs:build using xcrun docc and xcbeautify

Bug Fixes

• Fixed @_exported import on Foundation and os.log
• OSLogProvider.buildOutput now accepts an injectable threadName parameter, eliminating test flakiness caused by non-deterministic scheduler queue names

Misc

• SwiftLint updated to latest