v2.4.0

Changed

• Documentation::__construct() now accepts an optional FileSet as second argument (the explicit DateTimeImmutable generation date moves to the third position); DocGenerator::handle() builds the FileSet before instantiating the Documentation
• RawFile::setStream() now also accepts a lazy callable(): resource provider, resolved and memoized on first stream access; DocCacheGenerator::get() uses it to defer cached file reads instead of opening every stream upfront (major win on remote filesystems like S3)
• Remove redundant fileExists() round-trip in DocCacheGenerator::get(); rely on the existing exception handling (notably faster on remote filesystems like S3). A cache miss now flows through the optional $errorHandler like any other read failure
• DocCacheGenerator::saveFile() is now private (was public); file caching is handled internally by save()

Removed

• DocCacheGenerator::readFile() (eager single-file read); cached file streams are now loaded lazily through get()