Review follow-up: the guide shows one package-name entry, so the comments
and copy that still described three forms or a displayed Git/local-path
example no longer match. The Git and local-path template strings keep their
replacement reminder for a field that still holds them; the constants' JSDoc
and the package READMEs now say that instead of claiming a displayed example.
Also moves .installSafetyText below the rule its comment heads, and pins the
upgrade assertion to the trust box rather than the whole dialog text.