Drop the big clock; keep both timers in the bar, with seconds

The asleep/awake counter rendered twice: a big card at the top of Today, and a
pill in the frozen bar that stayed invisible until the card scrolled out of
sight. That arrangement made the timer hardest to see exactly when you wanted
it — it lived on one tab in five, and hid itself whenever it was on screen.

So the card goes. Both timers sit in the frozen bar, on every tab, always
visible. That takes the standby mechanism with it, along with the rect
comparison that decided when to engage it, renderBigClockCard, and one of the
two jobs the scroll handler was doing.

Having a single place to render them is also what pays for the seconds. They
were cut to minutes last change to buy width; the month grid has since given
back about 93px by taking Today off the bar, which more than covers the 32px
the seconds cost. One row from 360px up now, wrapping only on a 320px SE and
the 280px foldable.

The pills stay at 0.9rem rather than going back to 1rem. It is tempting now
they are the only timer, but there are 6px of slack at 375px and the larger
type adds about 10, which would wrap an iPhone SE 2 and an iPhone 8.

src/changelog.json

@@ -1,4 +1,5 @@
 [
+  { "date": "2026-09-09", "text": "The big asleep/awake card at the top of Today is gone, and both timers now live permanently in the frozen bar at the top — visible on every tab, wherever you have scrolled to. The card only existed on one tab and the timers hid themselves whenever it was on screen, which meant the thing you most often want at a glance was the thing you had to go and find. With only one place left to show them they have their seconds back too" },
   { "date": "2026-09-08", "text": "The date now opens a small month grid of the app's own instead of the browser's date picker. The browser's one is a sheet that covers the screen, which is backwards when the reason to change day is to see what the numbers did on it — this one sits under the bar with the overview still visible and updating as you move. ← and → still step a day at a time; the grid is for jumping further, and the Today button now lives inside it. That is what made room for the walk timer and the sleep timer to sit on one row: the top bar no longer splits onto two rows on a phone, except on the very smallest. The two timers count in minutes now rather than seconds — the big card on Today still ticks in seconds, which is where you look if you want them" },
   { "date": "2026-09-08", "text": "A walk in progress now has a timer in the frozen bar at the top, next to the asleep/awake one, counting from when the walk started — so you can see how long you have been out from any tab without going to look. Tapping it ends the walk, the same way tapping the sleep timer logs the sleep boundary. On a narrow phone two timers no longer fit beside the date controls, so the bar splits onto two rows while a walk is on and goes back to one when it ends. The big timer card on Today shows the walk too while there is one — you are awake on a walk either way, so the walk is the more useful of the two" },
   { "date": "2026-09-07", "text": "Going back to the Today tab no longer jumps the viewport either — by tapping it or with the back button. The other tabs stopped jumping in the last change, but returning to Today is a history step, and the browser was restoring the scroll position from when you last left it" },