'general' is the top-level overview shown for a bare invocation,
issue_tree --help, issue_tree -h, or issue_tree help. The four
subcommand names select that subcommand's flag reference.
Kept as a union literal (not an array) so the helpText dispatcher can keep
an exhaustive switch over it — widening to string would silently disable
the compiler's exhaustiveness check.
The set of help topics
helpTextcan render.'general'is the top-level overview shown for a bare invocation,issue_tree --help,issue_tree -h, orissue_tree help. The four subcommand names select that subcommand's flag reference.Kept as a union literal (not an array) so the
helpTextdispatcher can keep an exhaustiveswitchover it — widening tostringwould silently disable the compiler's exhaustiveness check.