fix(pm): the --ran and --commands lanes read the one OUTSIDE enumeration (#17028)

* fix(pm): read the one OUTSIDE enumeration on the --ran and --commands lanes

The list of blocks that sit outside a card's runnable total is one claim.
#16398 built it once for the human lane, as `outsideBlockNames`. The other
two output lanes kept their own short prose copies: `--ran` named three of
the five blocks a plain run prints, and the `--commands` / `--json` stderr
accounting named exactly one — on the very channel this file's own header
tells consumers to use INSTEAD of harvesting the prose.

`outsideBlockNames` / `outsideBlocksPhrase` are exported now and all three
lanes read them. The third name ("the pending-changeset families") was still
spelled unconditionally while `pendingChangesetLines` returns nothing at
zero, so it is conditional on its own count too, from the array that renders
the block — like the two beside it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HxLw5aKDPR5RJgyUR7Exkd

* test(pm): reword one lane-2 case name so it reads on the always-runs row

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HxLw5aKDPR5RJgyUR7Exkd

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Co-authored-by: Claude <noreply@anthropic.com>

Author: yinlianghui