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/menubar.stories.tsx

@@ -17,7 +17,7 @@ import {
   MenubarSubTrigger,
   MenubarTrigger,
 } from "@hm-design/ui"
-import { STORY_KICKER, StoryPage, StoryPageHeader, StorySection } from "@/components/story-page"
+import { StoryPage, StoryPageHeader, StorySection } from "@/components/story-page"
 
 // Menubar is a desktop menu bar (Left / Right between top menus). The representative Story is the real bar and opens the real
 // menus; Radix owns the keyboard model and focus. Hidden verification Stories isolate trigger focus and open + focus.
@@ -97,11 +97,10 @@ export const All: Story = {
   render: () => (
     <StoryPage>
       <StoryPageHeader
-        kicker={STORY_KICKER.components}
         title="Menubar"
-        description="데스크톱 앱 형태의 상단 메뉴 막대입니다. 메뉴가 열린 상태에서 좌우 방향키로 이웃 메뉴로 이동합니다."
+        description="열린 상태에서 좌우 방향키로 이웃 메뉴 이동"
       />
-      <StorySection title="Overview" description="파일(단축키 · Disabled · 하위 메뉴 · 위험 항목), 편집, 보기(Label · Checkbox · Radio)입니다. 메뉴를 눌러 엽니다.">
+      <StorySection title="Overview" description="단축키 · Disabled · 하위 메뉴 · 위험 항목 · Checkbox · Radio">
         <div style={{ minHeight: 384 }}>
           <Specimen />
         </div>