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/CreateFlowLayoutClient.tsx

@@ -41,10 +41,7 @@ import {
   createFlowStepPathWithSyncDraft,
 } from "./utils/createFlowPaths";
 import { getProportionBarProgressForCreateFlowStep } from "./utils/createFlowProportionProgress";
-import {
-  createFlowStepUsesCenteredTextLayout,
-  createFlowStepUsesCardLayout,
-} from "./utils/createFlowScreenRegistry";
+import { createFlowStepUsesCenteredTextLayout } from "./utils/createFlowScreenRegistry";
 import Button from "../../components/buttons/Button";
 import { isValidCreateFlowSaveEmail } from "../../../lib/create/isValidCreateFlowSaveEmail";
 import { buildCreateFlowDraftPayload } from "../../../lib/create/buildCreateFlowDraftPayload";
@@ -557,20 +554,19 @@ function CreateFlowLayoutContent({
   const isFinalReviewLike =
     currentStep === "final-review" || currentStep === "edit-rule";
   const isEditRuleStep = currentStep === "edit-rule";
-  const isCardLayoutStep = createFlowStepUsesCardLayout(currentStep);
-  /** Two-column select / right-rail: below `lg` main scrolls; at `lg+` only the right column scrolls. */
+  /** Two-column question-and-options: below `lg` main scrolls; at `lg+` only the right column scrolls. */
   const isSelectSplitScrollStep = createFlowStepUsesSelectSplitScroll(
     currentStep,
   );
 
-  /** Lockup+card / card-stack: `items-start` + shell `my-auto` so overflow scrolls from the top. */
+  /** Lockup+card review: `items-start` + shell `my-auto` so overflow scrolls from the top. */
   const mainContentClass = isCompletedStep
     ? "items-stretch overflow-y-auto md:overflow-hidden"
     : isSelectSplitScrollStep
       ? "items-start justify-start overflow-y-auto max-lg:overflow-y-auto lg:min-h-0 lg:items-stretch lg:overflow-hidden"
       : isCreateTemplatesPickerRoute
         ? "items-start justify-start overflow-y-auto"
-        : isTemplateReviewRoute || isFinalReviewLike || isCardLayoutStep
+        : isTemplateReviewRoute || isFinalReviewLike
           ? CREATE_FLOW_MD_CENTERED_MAIN_CLASS
           : "items-start justify-center overflow-y-auto md:items-center";