Release v3.21.1

Changed

• Bundle Screenplay 4.45.0 (Screenplay, MCP and canonical corpus), which adds the then no readmodel <ReadModel> for <key> assertion; models that use it compile to ESM v5, which ESM consumers must admit explicitly.

Fixed

• cratis screenplay generate now names the declared enumeration member, including a [Flags] zero member, when a scenario asserts it, so generated documents no longer fail with SP0034 ("not a declared member of enum"). A scenario value the document cannot state is left out and reported as warning SP0039, and events seeded through a command scenario's event scenario are generated as given events. The CLI now bundles Arc's Screenplay generation 22.40.2. (#172)