Release v4.50.0

Added

• A typed repair for PLAY0166 declares an undeclared produced event in the producing slice, with property types taken from the command properties it maps (concepts are kept) and DateTime for $context.occurred. The repair is not offered when a type is uncertain or conflicting, the producers are in other files, or the workspace has parse errors (#298)
• PLAY0478 (information) reports a plain produces <Event> without for in a command that has one required scalar identifier, in the compiler, Monaco and the VS Code extension (#305)
• A typed repair for PLAY0478 states for <identifier> on the production. It is not offered when it would change the model's language or semantic version, or where any other production's events land (#305)
• Both repairs are available through the MCP server's repair tools, and the repairs view lists only repairs that a proposal will accept (#298)
• The command examples in the commands documentation are compiled by the test suite so they stay valid (#305)

Changed

• Diagnostic repairs are verified by finding the selected repair again and comparing it, so repairs that add or replace syntax nodes can be proposed, not only self-replacements
• Proposing a repair through MCP returns the transaction's conflicts and diagnostics when the repair fails, and reports an unknown repair only when no repair matches the code and subject