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/components/hover-card.stories.tsx

@@ -1,6 +1,6 @@
 import type { Meta, StoryObj } from "@storybook/react-vite"
 import { HoverCard, HoverCardContent, HoverCardTrigger } from "@hm-design/ui"
-import { STORY_KICKER, StoryPage, StoryPageHeader, StorySection } from "@/components/story-page"
+import { StoryPage, StoryPageHeader, StorySection } from "@/components/story-page"
 
 // Hover Card is a Radix overlay (Portal) for a richer preview than Tooltip. The representative Story shows real triggers
 // (hover or focus to open); the verification Story starts one open. Radix owns the open / close delay and the hover bridge.
@@ -54,14 +54,13 @@ export const All: Story = {
   render: () => (
     <StoryPage>
       <StoryPageHeader
-        kicker={STORY_KICKER.components}
         title="Hover Card"
-        description="링크에 포인터를 올리거나 포커스하면 Tooltip보다 풍부한 미리보기를 띄우는 overlay입니다."
+        description="링크 hover / focus 시 미리보기"
       />
-      <StorySection title="Overview" description="링크 위에 포인터를 올려 미리보기를 엽니다.">
+      <StorySection title="Overview">
         <Preview />
       </StorySection>
-      <StorySection title="Usage" description="긴 콘텐츠는 카드 폭에서 줄바꿈되고 높이만 늘어납니다.">
+      <StorySection title="Usage" description="카드 폭 고정 · 높이만 늘어남">
         <LongContent />
       </StorySection>
     </StoryPage>