feat(train): Home opens on today's figures from the band (ADR 0030, D60)

While the Loop gave figures for today, Home shows them above the week:
steps, active time, last night's sleep and Nightly Recharge, as Profile
lists a day, tapped opening the day's page. Shown above Home's message
too, before a first workout; the week waits for one.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>

docs/adr/0030-halkyon-train.md

@@ -1523,6 +1523,11 @@ Strava. What was found, 27 Oct:
   (`YearCard`, `yearSummary`), over the days; over the year's totals alone and over
   progress from the Loop's days, which someone without a Loop wouldn't have (the
   developer's, 31 Oct). Every duration reads as the days' do (`hoursMinutes`).
+  Home opens on today from the band (`TodayCard`: steps, active time, last night's sleep
+  and Nightly Recharge, as Profile lists a day, `dayFigures`; tapped, the day's page,
+  in Profile's tab), shown while the band gave figures for today, and so for someone
+  with a Loop alone; above the week, which waits for the first workout, and above
+  Home's message while there is none.
 
 ## Consequences