Move what the app says about time out of the views that said it first

formatClock lived in NowPlayingBar.kt and had grown five callers across screens that share no
other code -- the transport, the break timeline, the chapter list, the sleep timer and the
transcript gutter. progressLabel, the one line under every episode title, lived in EpisodeRow.kt
and had three. Both are pure, neither is a view, and each file had defined its own
minutes-per-hour, so changing how the now-playing bar reads a position meant editing the
transcript gutter's formatter.

They are the last two holdouts from a rule this app already follows everywhere else: anything it
says out loud lives in a named file of its own and is tested, not inside the composable that
renders it. SkipSummary, RuleSummary, FoundBySummary, WaitingForServerText, DescriptionPreview
and SpeedChoices are all already arranged that way -- WaitingForServerText's own comment says
so. Compose screens are excluded from coverage, so wording left inside one is wording nothing
checks.

TimeText holds both formatters and one set of constants: formatClock for a position on the
transport, formatDuration for a length. They look similar and are not interchangeable -- 1:02:03
answers "where am I", 1h 2m answers "have I got time for this". EpisodeLabels holds progressLabel
and the release-date wording it uses.

Both had no test at all. The sixteen here were written against the old locations and confirmed
green *before* the move, so re-running them after it is what proves the move changed no
behaviour; written afterwards they would only prove the new code agrees with itself. They pin
the hour boundary from both sides, because everything in this library is under an hour except
the thing the app exists for, and the future-dated episode, which floors to zero days and would
otherwise read "today" for as long as it existed.

951 unit tests pass, detekt clean, coverage unchanged. The one line under an episode title was
read back off a device after the move: "20 Oct 2026 · 1h 20m".

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018AwnALZL6bD4VBtATDVv3B

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