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/progress.wrn

@@ -36,22 +36,51 @@ component Progress {
 
     .wrn-progress-component__row {
       display: flex;
+      align-items: baseline;
       justify-content: space-between;
       gap: 1rem;
+      font-weight: 550;
     }
 
+    .wrn-progress-component__row > strong {
+      color: var(--wrn-color-text-muted, var(--wrn-color-muted));
+      font-family: var(--wrn-font-mono, monospace);
+      font-size: 0.8em;
+      font-weight: 600;
+      font-variant-numeric: tabular-nums;
+    }
+
+    /* Recessed track, raised fill: the same keycap-on-well pairing as the
+       button and field. */
     .wrn-progress-component__track {
+      appearance: none;
       width: 100%;
-      height: 0.6rem;
+      height: 0.5rem;
       overflow: hidden;
       border: 0;
       border-radius: 999px;
-      background: var(--wrn-color-surface-2);
+      background: var(--wrn-color-surface-muted, var(--wrn-color-surface-2));
+      box-shadow: inset 0 1px 2px rgb(0 0 0 / 0.1);
       accent-color: var(--wrn-progress-color);
     }
+    .wrn-progress-component[data-size="xs"] .wrn-progress-component__track,
+    .wrn-progress-component[data-size="sm"] .wrn-progress-component__track { height: 0.3125rem; }
+    .wrn-progress-component[data-size="lg"] .wrn-progress-component__track,
+    .wrn-progress-component[data-size="xl"] .wrn-progress-component__track { height: 0.75rem; }
 
-    .wrn-progress-component__track::-webkit-progress-bar { background: var(--wrn-color-surface-2); }
-    .wrn-progress-component__track::-webkit-progress-value { background: var(--wrn-progress-color); }
-    .wrn-progress-component__track::-moz-progress-bar { background: var(--wrn-progress-color); }
+    .wrn-progress-component__track::-webkit-progress-bar {
+      background: var(--wrn-color-surface-muted, var(--wrn-color-surface-2));
+      border-radius: 999px;
+    }
+    .wrn-progress-component__track::-webkit-progress-value {
+      border-radius: 999px;
+      background: linear-gradient(180deg, color-mix(in srgb, var(--wrn-progress-color) 88%, white), var(--wrn-progress-color));
+      box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.25);
+      transition: width var(--wrn-motion-slow) var(--wrn-ease-emphasized);
+    }
+    .wrn-progress-component__track::-moz-progress-bar {
+      border-radius: 999px;
+      background: linear-gradient(180deg, color-mix(in srgb, var(--wrn-progress-color) 88%, white), var(--wrn-progress-color));
+    }
   }
 }