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/switch.stories.tsx

@@ -2,7 +2,7 @@ import { useId, useState, type ReactNode } from "react"
 import type { Meta, StoryObj } from "@storybook/react-vite"
 import { Label, Switch } 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"
 
 function Option({ label, children }: { label: string; children: (id: string) => ReactNode }) {
   const id = useId()
@@ -41,9 +41,8 @@ export const All: Story = {
   render: () => (
     <StoryPage>
       <StoryPageHeader
-        kicker={STORY_KICKER.components}
         title="Switch"
-        description="설정을 즉시 켜고 끄는 컨트롤입니다. 트랙 36×20, 썸 16이며 On은 state-active 색입니다."
+        description="트랙 36×20 · 썸 16 · On은 state-active 색"
       />
       <StorySection title="Overview">
         <StateBoard