chore(spec): regenerate the component references page on the merged tree; the metric rationale fragment takes order 69

Claude-Session: https://claude.ai/code/session_01T9u38rswFp5Rw8DswRUReJ
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

content/docs/references/ui/component.mdx

@@ -436,7 +436,7 @@ Sort field and direction pair
 | Property | Type | Required | Description |
 | :--- | :--- | :--- | :--- |
 | **content** | `string \| Record<string, string>` | ✅ | Text or Markdown content — a plain string, or an inline locale map |
-| **variant** | `Enum<'h1' \| 'h2' \| 'h3' \| 'h4' \| 'h5' \| 'h6' \| 'body' \| 'caption' \| 'overline' \| 'heading' \| 'subheading'>` | optional (default: `"body"`) | Text style variant |
+| **variant** | `Enum<'h1' \| 'h2' \| 'h3' \| 'h4' \| 'h5' \| 'h6' \| 'body' \| 'caption' \| 'overline'>` | optional (default: `"body"`) | Text style variant |
 | **align** | `Enum<'left' \| 'center' \| 'right'>` | optional (default: `"left"`) | Text alignment |
 | **aria** | `{ ariaLabel?: string \| Record<string, string>; ariaDescribedBy?: string; role?: string }` | optional | ARIA accessibility attributes |
 

packages/spec/src/migrations/registry.ts

@@ -6266,7 +6266,7 @@ const STEP18_RATIONALE: readonly RationaleFragment[] = [
   },
   {
     id: 'ui-object-metric-aggregate-trend-typed',
-    order: 68,
+    order: 69,
     text:
       'It also types two members of the `object-metric` page block (#21464, the fourth stage of the '
       + '`ComponentPropsMap` `z.unknown()` close-out): `aggregate` and `trend` were `z.unknown()`, although '