Standardize create-flow option steps on one question-and-options layout and Selection sizes.

Method cards, chips, and the right rail now share the two-column shell; last options clear the footer fade, See all stays under the stack, and the left heading no longer jumps when the list expands.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/(app)/create/screens/right-rail/DecisionApproachesScreen.tsx

@@ -766,7 +766,7 @@ export function DecisionApproachesScreen() {
       }
     >
       <div
-        className="flex w-full min-w-0 flex-col items-stretch gap-6 py-0"
+        className="flex w-full min-w-0 flex-col items-stretch gap-6 py-0 lg:h-full lg:min-h-0 lg:flex-1"
         aria-busy={!recommendationsReady}
       >
         {recommendationsReady && (
@@ -796,7 +796,7 @@ export function DecisionApproachesScreen() {
             layout="singleStack"
             compactRecommendedLimit={5}
             compactCardIds={compactCardIds}
-            className="w-full"
+            className="w-full lg:h-full lg:min-h-0 lg:flex-1"
             headerLockupSize={mdUp ? "L" : "M"}
           />
         )}