Google Docs: Append text to a document.
PREREQUISITE: Read ../gws-shared/SKILL.md for auth, global flags, and security rules. If missing, run gws generate-skills to create it.
../gws-shared/SKILL.md
gws generate-skills
gws docs +write --document <ID> --text <TEXT>
--document
--text
gws docs +write --document DOC_ID --text 'Hello, world!'
[!CAUTION] This is a write command — confirm with the user before executing.