Keep the compile-time generic marker as *. Update the compiler, stdlib,
fixtures, documentation and editor grammars without a dynamic type alias.
Preserve native identifiers and historical work and patch records.
Replace the port_spawn environment argument with cwd/env options. Report
failed directory changes through EXIT 127 with cwd_failed.
Compile every API example and add a complete Pi RPC service example.
Service examples compile without execution or output blocks. Update ABI
versions and audited golden artifacts.