Part of the #1802 hive-forge audit: the read verbs (view / issue / pr /
comments / comment-show / timeline / diff / pr-status / pr-reviews) look
overlapping but each has a distinct output shape. Add a selection table +
rule-of-thumb so agents pick the right one (esp. 'view first' to clear the
read-before-comment guard) instead of guessing. Zero blast radius — pure
docs, no verb changes (the audit concluded the CLI is structurally clean
and renames/removals aren't worth the caller breakage).