Release v7.48.3

Changed

• The cratis-screenplay-toolchain skill is rewritten as guidance for running and checking models: locating the model, the command behind each verdict and what a pass looks like, reading diagnostics, executable and renderable constructs, and traps. It no longer carries version tables, probe history or source citations; where a construct needs a minimum tool version, the reference that teaches it says so in one Requires line. (part of #662)
• Skills that sent agents to the toolchain's version table now point to how to read the installed versions (screenplay --version, cratis --version) or to the capability reference that answers the question. (part of #662)

Removed

• The toolchain skill's versions.md, doc-contradictions.md and provenance.md references. The documentation contradictions that still hold are tracked as issues on Cratis/Screenplay. (part of #662)