Release v7.91.0

Added

• The Screenplay command-surface skill teaches require anonymous for a public command or query (Screenplay 4.231.0): it must be the whole authorization, with the diagnostics that enforce that and specifications that may omit given caller. (#808)
• The Screenplay model-authoring skill describes moving a single command, event, read model, projection, query, reaction or capture to another slice with propose-move (Screenplay 4.230.0): which specifications move with it, what is refused, and that screen actions are repaired while slice-level events and identities stay as they are. (#817)
• The MCP tool reference covers trace-lineage and propose-inline-event, each with the Screenplay version it needs.

Changed

• The corpus is verified against Screenplay 4.231.0 and its published contract.