feat(design): FocusCard hero, CountdownCard, data-* palette, swipe, touch-targets

Big design pass across Home + tokens + components.

— globals.css: new data-* palette (cool/warm/hot/good/info/rose/violet/mood)
  with theme-aware variants, .grain overlay utility, .num-display
  typography helper, .hit-zone 44px wrapper, .eyebrow label, .focus-card
  base, focus-visible outline-offset 3px, space/touch scale vars.
— FocusCard.tsx: context engine — пять состояний (morning-outfit,
  tram-imminent, event-upcoming, countdown, bill-due, night, quiet).
  Auto-rotates by hour + live data. 96px display numbers, accent-mixed
  surfaces, grain overlay.
— CountdownCard.tsx + /api/countdowns: rotating 8s list, persistent
  /data/tablet-countdowns.json, full CRUD. Default seeded with Токио.
— HomeTab: replaced plain Weather hero with FocusCard, added Row 4
  with CountdownCard. Pulls trams + countdowns for the Focus context.
— Swipe between tabs: pointer-level detection on <main>, data-swipe-ignore
  bails out inside modals + note swipe-to-delete + voice overlay.
— Touch-target sweep: TopBar HA dot → 44px hit-zone, sensor chip 44px
  min-height, forecast day buttons 92px min, DeviceCard toggle 60x36,
  CalendarTab prev/next/close/list all 44x44, NotesTab buttons 44x44,
  TimerHomeWidget + 44x44, WeatherDayModal chevrons 48x48, close 48.
— Hardcoded hex → data-* tokens: TopBar sensors, TransportWidget routes
  (via color-mix), DeviceCard full rewrite (per-kind accent, glass
  removed in favor of color-mix surfaces + proper mock-state treatment),
  NotesTab palette refreshed to match dark theme.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

components/TimerHomeWidget.tsx

@@ -125,15 +125,15 @@ export default function TimerHomeWidget() {
             onClick={() => setModal({ type: 'create' })}
             aria-label="Новый таймер"
             style={{
-              width: 32, height: 32, borderRadius: 10,
-              background: 'color-mix(in srgb, #818cf8 12%, var(--surface-2))',
-              border: '1px solid color-mix(in srgb, #818cf8 30%, var(--border-subtle))',
-              color: '#a5b4fc',
+              width: 44, height: 44, borderRadius: 14,
+              background: 'color-mix(in srgb, var(--accent) 14%, var(--surface-2))',
+              border: '1px solid color-mix(in srgb, var(--accent) 30%, var(--border-subtle))',
+              color: 'var(--accent)',
               display: 'flex', alignItems: 'center', justifyContent: 'center',
               cursor: 'pointer',
             }}
           >
-            <Plus size={15} />
+            <Plus size={18} />
           </button>
         </div>