Two gaps found auditing the decode-crash cluster:
1. suppress_platform_ver_console() only ran in hermes_cli.main processes;
slash workers, tui_gateway/entry, run_agent, batch_runner, and cli.py
import only hermes_bootstrap and were exposed to both the console
flash and (on Python 3.11.0/3.11.1, which lack CPython's
encoding='locale' fix) a UnicodeDecodeError inside platform.win32_ver()
under PEP 540 — the crash #69413 reported. Move the stub into
hermes_bootstrap so every entry point gets it; the _subprocess_compat
copy stays for non-bootstrap callers.
2. The desktop Electron spawn built the backend env without PYTHONUTF8,
so anything the Python child emitted before hermes_bootstrap ran
(interpreter startup errors, pre-bootstrap tracebacks) decoded with
the locale default. Re-port of PR #56499's env half (echoriver89) to
backend-env.ts (original targeted the deleted backend-env.cjs);
explicit user setting wins.
