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/popover.stories.tsx

@@ -1,6 +1,6 @@
 import type { Meta, StoryObj } from "@storybook/react-vite"
 import { Button, Input, Popover, PopoverClose, PopoverContent, PopoverTrigger } from "@hm-design/ui"
-import { STORY_KICKER, StoryPage, StoryPageHeader, StorySection } from "@/components/story-page"
+import { StoryPage, StoryPageHeader, StorySection } from "@/components/story-page"
 
 // Popover is a non-modal Radix overlay (Portal). The representative Story opens the real panels from their triggers;
 // the verification Story starts one open. Radix owns outside click / Escape close and focus return.
@@ -84,17 +84,16 @@ export const All: Story = {
   render: () => (
     <StoryPage>
       <StoryPageHeader
-        kicker={STORY_KICKER.components}
         title="Popover"
-        description="Trigger 옆에 상호작용 가능한 패널을 띄우는 비모달 overlay입니다. 바깥 클릭이나 Esc로 닫힙니다."
+        description="비모달 · 바깥 클릭이나 Esc로 닫힘"
       />
-      <StorySection title="Overview" description="버튼을 눌러 안내 패널을 엽니다.">
+      <StorySection title="Overview">
         <Info />
       </StorySection>
-      <StorySection title="Variants" description="align: start / center / end.">
+      <StorySection title="Variants">
         <Aligned />
       </StorySection>
-      <StorySection title="Usage" description="패널 안의 입력 폼 조합입니다. 취소·저장은 PopoverClose로 닫습니다.">
+      <StorySection title="Usage" description="취소·저장은 PopoverClose로 닫음">
         <FormPanel />
       </StorySection>
     </StoryPage>