b0e010c6cc
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>