Release v4.49.9

Changed

• Stage consumes the Screenplay 4.114 command-form and binding ABI for stable component ids, literal bindings, form generation mode, and form layout metadata. (part of #236) (part of #237)

Fixed

• Authored command actions in /stage/scene now include modeled command schemas, required metadata, and field descriptors so native command forms can render and validate inputs before submission. (part of #236) (part of #237)
• Stage marks missing command metadata separately from intentionally parameterless commands, keeping unsafe command actions fail-closed instead of submitting empty payloads. (part of #236) (part of #237)