Extracted from #318 (the UTF-8/doctor core, minus the env-wrapper feature):
- new agent_reach/utils/process.py: utf8_subprocess_env() +
mcporter_utf8_env_args() — Windows GBK consoles otherwise corrupt
Chinese output from mcporter/MCP child processes
- weibo/douyin/linkedin checks and weibo install/registration now pass
the UTF-8 env (and register the MCP server with --env PYTHONUTF8=1)
- youtube: extract _has_js_runtime_config() with an OSError guard so an
unreadable yt-dlp config can't crash doctor
- test_skill_command: open SKILL.md with explicit utf-8 (Windows GBK
default broke these tests)
Co-authored-by: chidao <2980933590@qq.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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