The activity histogram moves to one-minute buckets held six hours deep,
so both the dashboard and the header can draw a dot column per minute
and still have history in reserve on wide terminals. The chart now
anchors "now" at the left edge (matching the header sparkline's
direction), stretches across every cell the terminal offers, and
mirrors its count scale on both gutters with per-row axis marks.
braille_bars gains the font's full horizontal resolution — each value
is one dot column, two per cell — and the traffic bars step in half
cells the same way. The pulse line quotes rates over exactly the span
the chart shows and sheds the word "heard" rather than wrap when the
terminal is too narrow for it.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>