Release v4.234.0

Added

• A query answered by a performer now describes its shape on its QueryPerformer implementation requirement, so a host can generate the query route, its performer hook and screen bindings: the read model it returns (name, semantic id and address), its cardinality (One, ZeroOrOne or Many), whether it is Live or a Snapshot, and the caller-supplied by keys and filters with their types and optionality. It is available from CompilationResult.ImplementationRequirements and as queryShape in the MCP read-workspace implementation-requirements view. The executable semantic model and its version are unchanged. See Queries. (#981)