Expand description
ScriptCtx — the host context passed to every stdlib FFI call.
Holds a shared HTTP agent (connection pooling across calls), the
command-line argv, the current file being evaluated (for relative-
path require), and the require cache (so repeated (require …)
calls are no-ops). Embedders that want to extend the stdlib should
either expose ScriptCtx directly or wrap it in their own type
and re-register fn’s against that.