refactor(storybook): simplify component and preview examples

Drop page / section descriptions, state notes and repeated captions from
the representative Stories of 44 components, the Patterns, Center
Graphic and OrgChart pages. Value readouts, spec lists and captions hide
only on the representative page; hidden verification Stories keep them.
Tabs Default API and the Filter Bar draft / applied counts move to the
hidden DefaultApi and DraftApplied Stories; Center Overview is hidden
with its direct URL kept. Story IDs are unchanged.

Align the component, pattern and OrgChart docs with the pages, point the
quality reference check at the DraftApplied Story, and make the P8
styles check expect no section header on the preview-only Expanded page.

src/components/textarea.stories.tsx

@@ -53,7 +53,6 @@ const narrow = (children: ReactNode) => <div className="max-w-sm">{children}</di
 const placeholder = "Enter a description"
 const multiline = "First line\nSecond line keeps its line break.\nThird line."
 
-const hoverNote = "Hover는 Default와 같습니다(사용자 결정 TEXTAREA-05). 포인터를 올려도 면, 테두리, 글자색이 바뀌지 않습니다."
 const readonlyNote =
   "Readonly는 Default의 면, 테두리, typography를 유지하고 흐리게 표시하지 않습니다. 값 변경은 막고 선택·복사는 허용하며 resize 표시가 없습니다."
 
@@ -86,24 +85,20 @@ export const All: Story = {
   parameters: { layout: "fullscreen", controls: { disable: true } },
   render: () => (
     <StoryPage>
-      <StoryPageHeader
-        title="Textarea"
-        description="최소 높이 112px · resize vertical · size 없음 · Label·Helper·Error는 소비 조합"
-      />
+      <StoryPageHeader title="Textarea" />
       <StorySection title="Overview">
         <StateBoard states={[{ id: "default", label: "Default", children: <Specimen placeholder={placeholder} /> }]} />
       </StorySection>
-      <StorySection title="States" description="Focus 1.5px 테두리(shadow 없음) · Hover = Default">
+      <StorySection title="States">
         <StateBoard
           states={[
-            { id: "hover", label: "Hover (= Default)", note: hoverNote, noteAfter: true, children: <Specimen defaultValue="Hover over this field" /> },
             { id: "focus", label: "Focus", children: <Specimen placeholder={placeholder} /> },
-            { id: "readonly", label: "Readonly", note: readonlyNote, noteAfter: true, children: <Specimen readOnly defaultValue="Confirmed description" /> },
+            { id: "readonly", label: "Readonly", children: <Specimen readOnly defaultValue="Confirmed description" /> },
             { id: "disabled", label: "Disabled", children: <Specimen disabled defaultValue="Unavailable description" /> },
           ]}
         />
       </StorySection>
-      <StorySection title="Validation" description="aria-invalid → Error 테두리 · 오류 문구는 소비 조합">
+      <StorySection title="Validation">
         <StateBoard
           states={[
             { id: "error", label: "Error", children: <Specimen error defaultValue="Invalid value" /> },