//! Startup environment passed to on_start callback.
//! Compose (if configured) is already up when this runs.
usestd::path::PathBuf;usecrate::base::tee_writer::TeeWriter;/// Environment provided at engine startup.
/// Use to launch MCP server, run initialization commands.
pubstructEnvStart{/// Isolated home directory. All configs and caches should use this path.
pubhome: PathBuf,
/// Tee writer for redirecting stdout/stderr to log file.
pubtee: TeeWriter,
}