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.

docs/components/date-picker.md

@@ -90,7 +90,7 @@ Popover: Portal, collision 처리, Escape, 바깥 클릭 닫힘, trigger focus
 
 ## 9. Storybook
 
-- 대표 Story `All`("Date Picker"): Empty, Selected(`2026.10.06`), 기본 형식(`2026.01.09`)/custom override, Controlled(값 표시), Medium, Disabled dates(5일 이전·일요일), Disabled를 한 페이지에 둔다. Label은 Story 조합이며 `today`는 Calendar prop으로 2026-10-02에 고정.
+- 대표 Story `All`("Date Picker"): Empty, Selected(`2026.10.06`), 기본 형식(`2026.01.09`)/custom override, Controlled(대표 화면은 값 표시 숨김, 숨김 `Controlled`는 표시), Medium, Disabled dates(5일 이전·일요일), Disabled를 한 페이지에 둔다. Label은 Story 조합이며 `today`는 Calendar prop으로 2026-10-02에 고정.
 - verification: `Empty`, `Selected`, `Controlled`.
 
 ## 10. 사용자 확정 결정