docs(storybook): simplify sidebar Story pages around the UI

Drop the category kicker from the 83 sidebar Stories (kicker is now optional;
hidden verification Stories keep it) and shorten or remove repeated, obvious
or internal page/section descriptions. Required specs, limits, virtual-data
and undecided-value notices stay. Story IDs, exports, fixtures, shared state
notes and package code are unchanged. Record: docs/reports/storybook-ui-simplification-2026-10-22.md

src/center/center-information.stories.tsx

@@ -1,6 +1,6 @@
 import type { Meta, StoryObj } from "@storybook/react-vite"
 import { CenterInformationDisplayReferenceDemo } from "@hm-design/center-graphic/reference"
-import { STORY_KICKER, StoryPage, StoryPageHeader, StorySection } from "@/components/story-page"
+import { StoryPage, StoryPageHeader, StorySection } from "@/components/story-page"
 import { CENTER_BOUNDARY, withRepresentation } from "./center-shared"
 
 // Owner: ui-viz docs/patterns/center-information-presentation.md and center-information-{box,table,emphasis}.md.
@@ -18,9 +18,8 @@ export const Information: Story = {
   render: () => (
     <StoryPage>
       <StoryPageHeader
-        kicker={STORY_KICKER.center}
         title="Information"
-        description="CENTER 정보 표시(Box · Table · Emphasis) Reference입니다. 단일행 말줄임만 해결된 상태이며 배율(Q3)은 정해지지 않았습니다."
+        description="Box · Table · Emphasis · 배율(Q3) 미정"
       />
       <StorySection title="Overview" description={CENTER_BOUNDARY}>
         {withRepresentation(() => (