4.0.3

Added

• Maintainer tooling: CLAUDE.md describes how the two simulator CI flakes present and how to tell them apart, and gains a Swift Package Index section covering what each .spi.yml key controls and why changes to the file take up to a day to show on the package page. The lint job gains the timeout-minutes every other job already had.

Removed

• The hardcoded "Language: Swift 5.9" README badge. It duplicated the Swift Package Index Swift version badge, which reports the versions the package actually builds against instead of a number kept up to date by hand.

Fixed

• The author line on the Swift Package Index page reads as a sentence again. SPI renders metadata.authors from .spi.yml verbatim, without the "Written by" prefix and full stop it adds to the line it derives from the commit history, so the value now carries them itself.