Swift 6

[David2XN]

• Updated Package.swift to Swift tools version 6.0.
• Changed Level.custom to store String instead of CustomStringConvertible.
• Removed DateFormatter from LogHeader; formatting remains the responsibility of encoders.
• Removed Combine
• Removed unnecessary continuation wrapping from OSLogStore.getEntries.
• Stopped using .init syntax for inits

[Copilot]

Pull request overview

Updates the Logger package to Swift 6 language mode, removing Combine usage from the core library and adjusting logging model types to be Swift-concurrency friendly (e.g., Sendable, string-backed payloads).

Changes:

• Bumps SwiftPM tools version to 6.0 and enables Swift 6 language mode.
• Refactors logging models (LogEntry, LogHeader, Level, etc.) to remove DateFormatter from headers and store messages/custom levels as String, adding Sendable where appropriate.
• Replaces Combine-based callback logging and updates async/queue usage patterns (incl. test updates and new thread-safe Counter test helper).

Reviewed changes

Copilot reviewed 17 out of 17 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
Tests/LoggerTests/Loggers/NativeLogger+OSLogStoreTests.swift	Updates test encoder to reflect LogEntry.message now being a String.
Tests/LoggerTests/Loggers/FileLoggerTests.swift	Removes Combine usage, injects fileAccessQueue, updates LogHeader construction, and rewrites concurrency test logic.
Tests/LoggerTests/LoggerManagerTests.swift	Removes Combine usage, updates expectation waiting, rewrites concurrency test logic.
Tests/LoggerTests/LogEntry+mock.swift	Updates mock entry builder for new LogHeader initializer and LogLocation init usage.
Tests/LoggerTests/Counter.swift	Adds a lock-protected counter utility for multithreaded tests.
Sources/Logger/Loggers/NativeLogger/OSLogStore/OSLogStore+getEntries.swift	Simplifies async entry retrieval by removing unnecessary continuation wrapping.
Sources/Logger/Loggers/FileLogger/FileLogger.swift	Simplifies file handle and UTF-8 conversion logic within the file-write path.
Sources/Logger/Loggers/FileLogger/FileAccessExecutor.swift	Adjusts queue scheduling to use DispatchWorkItem (Swift 6 concurrency compatibility).
Sources/Logger/Loggers/ApplicationCallbackLogger.swift	Removes Combine publisher, injects a logging callback closure, and updates macOS compile condition.
Sources/Logger/LoggerManager.swift	Removes Combine subscriptions, wires application callbacks via injected closure, updates header init and queue dispatch call style.
Sources/Logger/LogEntry/LogLocation.swift	Adds Sendable conformance.
Sources/Logger/LogEntry/LogHeader.swift	Adds Sendable conformance and removes DateFormatter from the type/API.
Sources/Logger/LogEntry/LogEntryCoding/LogEntryEncoder.swift	Minor initializer style update for Swift 6 mode.
Sources/Logger/LogEntry/LogEntryCoding/LogEntryDecoder.swift	Updates decoding to use new LogHeader initializer and explicit type inits.
Sources/Logger/LogEntry/LogEntry.swift	Adds Sendable, changes stored message to String while preserving convertible init input.
Sources/Logger/LogEntry/Level.swift	Adds Sendable and changes .custom associated value to String.
Package.swift	Updates tools version to Swift 6.0 and enables Swift 6 language mode.

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