Add allowed_env_keys config field to selectively forward host environment variables (e.g. GOPATH, JAVA_HOME) into the sandboxed subprocess environment, while keeping the default allow-list unchanged.
Introduce a disabled_skills option in the config schema that allows
users to specify a list of skill names to be excluded. The setting is
threaded from config through Nanobot -> AgentLoop -> ContextBuilder ->
SkillsLoader. Disabled skills are filtered out from list_skills,
get_always_skills, and build_skills_summary. Four new test cases cover
the filtering behavior.
chenyahuiandXubin Ren