style(studio): keep StudioRightPanel under the 600 line cap

packages/studio/src/components/StudioRightPanel.tsx

@@ -446,8 +446,7 @@ export function StudioRightPanel({
 
   return (
     <>
-      {/* Vertical resize divider: 3px visible seam, 13px pointer-capture zone via
-          the absolutely-positioned inner hit area. */}
+      {/* Vertical resize divider: 3px visible seam, 13px hit zone via the inner div. */}
       <div
         role="separator"
         aria-label="Resize inspector panel"
@@ -467,11 +466,9 @@ export function StudioRightPanel({
           adjustPanelWidth("right", delta);
         }}
       >
-        {/* Expanded hit zone, deliberately asymmetric: 8px into the preview pane's
-            p-2 stage gutter (the only dead space here), the 3px seam, then 2px
-            into the inspector card. It stops at 13px rather than the 24px WCAG 2.2
-            (2.5.8) target because the next pixel on either side is live: the
-            preview stage on the left, the inspector's own controls on the right. */}
+        {/* Asymmetric hit zone: 8px into the preview's p-2 gutter (the only dead
+            space), the 3px seam, 2px into the card. Stops short of the 24px WCAG
+            2.5.8 target because the next pixel each way is live. */}
         <div className="absolute inset-y-0 -left-[8px] w-[13px]" />
         {/* Visible hairline */}
         <div className="absolute top-1/2 left-0 h-[52px] w-[3px] -translate-y-1/2 bg-white/12 transition-colors group-hover:bg-white/18 group-active:bg-white/24" />