feat(ui): component redesign pass and fixes, release ui 0.8.87

Redesign
- Shared field foundation rules (duplicated across 15 form components and
  emitted globally) are now identical everywhere, so later copies no longer
  silently override earlier redesigns.
- Drawn checkbox and radio controls, white switch thumbs (the thumb was the
  text colour, a black blob in light mode), recessed field wells, keycap
  actions in Modal, Drawer, Popover, Toaster, Pagination, Stepper, DataTable.
- Menus (Dropdown, ContextMenu, Popover, Select dropdown, Navbar panels) share
  one flat raised panel with neutral hover rows and mono section labels.
- Alerts with an accent rail and icon chip; card headers without the grey
  band; accordion, collapse, list, list group, timeline, stats, metrics,
  chat, skeleton, avatar group, clipboard, splitter, section, sidebar,
  navbar and upload progress restyled.
- Chart rebuilt: nice y-axis ticks, gridlines, rounded bars, line and area
  modes, hover tooltips, hidden series leave the scale.

Fixes
- Checkbox and radio labels toggle their input again (empty for="" broke it).
- TimePicker kept every clicked time pressed; only the chosen hour and
  minute are pressed now, and nothing is pressed before a value exists.
- ColorPicker hex readout now follows the picked colour.
- Disabled FileInput no longer shows the native file-input text.
- Date and time panels float instead of pushing content.
- ContextMenu opened at the pointer closes on scroll.
- Drawer left/top/bottom placements slide from their own edge again.
- Image-only Card no longer renders an empty body strip.
- Timeline supports item.time, current/upcoming states, sizes and
  compact/alternate variants; showcase demos use distinct variants.
- ChatBubble: delivery receipts (sending/sent/delivered/read/failed/error)
  and meta aligned to its bubble.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/ui/components/Rating.wrn

@@ -49,12 +49,32 @@ component Rating {
     .wrn-rating { display:grid; gap:.6rem; color:var(--wrn-color-text); }
     .wrn-rating p { margin:0; color:var(--wrn-color-muted); font-size:.875rem; }
     .wrn-rating__stars { display:flex; align-items:center; gap:.25rem; }
-    .wrn-rating button { display:grid; place-items:center; width:2rem; height:2rem; padding:.2rem; border:0; background:transparent; color:var(--wrn-color-muted); cursor:pointer; }
+    .wrn-rating button {
+      display: grid;
+      place-items: center;
+      width: 2rem;
+      height: 2rem;
+      padding: .2rem;
+      border: 0;
+      border-radius: calc(var(--wrn-radius-sm) - 2px);
+      background: transparent;
+      color: var(--wrn-color-border-strong, var(--wrn-color-muted));
+      cursor: pointer;
+      transition: color 120ms ease, transform 120ms ease;
+    }
     .wrn-rating svg { width:1.5rem; height:1.5rem; fill:none; stroke:currentColor; stroke-width:1.5; }
-    .wrn-rating button[data-filled="true"] { color:var(--wrn-color-warning-text); }
+    .wrn-rating button[data-filled="true"] {
+      color: var(--wrn-color-warning);
+    }
     .wrn-rating svg { grid-area:1 / 1; }
     .wrn-rating .wrn-rating__fill { fill:currentColor; clip-path:inset(0 calc(100% - var(--fill)) 0 0); }
-    .wrn-rating output { margin-inline-start:.5rem; font-size:.8rem; color:var(--wrn-color-muted); }
+    .wrn-rating output {
+      margin-inline-start: .5rem;
+      font-family: var(--wrn-font-mono, monospace);
+      font-size: .75rem;
+      font-variant-numeric: tabular-nums;
+      color: var(--wrn-color-muted);
+    }
     .wrn-rating button:focus-visible { outline:2px solid var(--wrn-color-focus); outline-offset:2px; border-radius:4px; }
   }
 }