enable_interpreter: bool = INTERPRETER_ENABLE_DEFAULTWire CodeInterpreterMiddleware from langchain-quickjs into the main
agent. Local-mode only; raises ValueError at agent-build time when a
remote sandbox is active. Subagents never receive the interpreter in v1.
langchain-quickjs is installed as a core dependency.
Defaults are owned by config_manifest (the canonical config surface) so
they are defined in exactly one place.