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/breadcrumb.stories.tsx

@@ -14,7 +14,7 @@ import {
   DropdownMenuTrigger,
 } from "@hm-design/ui"
 import { StateBoard } from "@/components/story-board"
-import { STORY_KICKER, StoryPage, StoryPageHeader, StorySection } from "@/components/story-page"
+import { StoryPage, StoryPageHeader, StorySection } from "@/components/story-page"
 
 // The representative "Breadcrumb" Story shows each case on one page (real links with sample hrefs); the same specimens also exist
 // as Stories tagged `verification` (hidden from the sidebar). BreadcrumbEllipsis is presentational: the Dropdown Menu example is
@@ -133,12 +133,11 @@ export const All: Story = {
   render: () => (
     <StoryPage>
       <StoryPageHeader
-        kicker={STORY_KICKER.components}
         title="Breadcrumb"
-        description="현재 페이지까지의 상위 경로를 보여주는 내비게이션입니다. 마지막 항목은 현재 페이지입니다."
+        description="마지막 항목 = 현재 페이지"
       />
       <StorySection title="Overview">{board("basic")}</StorySection>
-      <StorySection title="Variants" description="중간 경로 생략(Ellipsis)과 사용자 링크 · 구분자입니다.">{board("ellipsis", "custom")}</StorySection>
+      <StorySection title="Variants" description="Ellipsis · 사용자 링크 · 구분자">{board("ellipsis", "custom")}</StorySection>
       <StorySection title="Usage">{board("long")}</StorySection>
     </StoryPage>
   ),