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/patterns/loading-screen.stories.tsx

@@ -2,7 +2,7 @@ import { useState } from "react"
 import type { Meta, StoryObj } from "@storybook/react-vite"
 import { Button, LoadingScreen } 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"
 
 // Loading Screen is a Dashboard-local pattern (ui-viz LoadingScreen). Inline fills its parent; fullscreen covers the viewport. The
 // fullscreen demo is mounted and removed by local state only; there is no async task, cancel or close control in the pattern.
@@ -33,14 +33,13 @@ export const All: Story = {
   render: () => (
     <StoryPage>
       <StoryPageHeader
-        kicker={STORY_KICKER.patterns}
         title="Loading Screen"
-        description="Dashboard 안에서 데이터를 불러오는 동안 표시하는 화면입니다. Inline은 부모 영역을 채우고, fullscreen은 viewport 전체를 덮습니다."
+        description="Inline은 부모 영역, fullscreen은 viewport 전체"
       />
-      <StorySection title="Overview" description="Inline: 부모 영역(여기서는 공통 Inner 폭)을 채웁니다.">
+      <StorySection title="Overview">
         <LoadingScreen />
       </StorySection>
-      <StorySection title="Variants" description="사용자 문구와 좁은 부모 영역입니다.">
+      <StorySection title="Variants">
         <StateBoard
           states={[
             { id: "label", label: "Custom label", children: <LoadingScreen>데이터를 불러오는 중</LoadingScreen> },
@@ -48,7 +47,7 @@ export const All: Story = {
           ]}
         />
       </StorySection>
-      <StorySection title="Usage" description="fullscreen은 viewport 전체를 덮습니다. 버튼으로 열고 오른쪽 위 닫기로 닫습니다.">
+      <StorySection title="Usage">
         <Fullscreen />
       </StorySection>
     </StoryPage>