feat(org-chart): finalize chart features and AI generation rules

.storybook/preview.tsx

@@ -43,6 +43,8 @@ const preview: Preview = {
           ],
           "Patterns",
           ["Data", ["Data Table", "Filter Bar"], "Layout", ["GNB", "LNB", "Dashboard Layout", "Loading Screen"]],
+          "OrgChart",
+          ["Overview", "Department Colors", "Full Composition", "Expanded OrgChart"],
           "Center Graphic",
           "*",
         ],