feat: update styling of FlowgramNodeRenderer and WorkflowNodeCard for consistency

web/app/dashboard/ai-workflows/_components/flowgram-node-renderer.tsx

@@ -25,7 +25,7 @@ export function FlowgramNodeRenderer(props: WorkflowNodeProps) {
     <WorkflowNodeRenderer
       node={props.node}
       className={cn(
-        "overflow-visible rounded-2xl border transition-colors",
+        "overflow-visible rounded-lg border transition-colors",
         selected ? "border-(--g-selection-background)" : "border-transparent"
       )}
       style={{ padding: 0 }}

web/app/dashboard/ai-workflows/_components/workflow-node-card.tsx

@@ -25,14 +25,14 @@ export function WorkflowNodeCard({
   return (
     <div
       className={cn(
-        "group relative rounded-2xl border bg-background p-0.5 transition-all",
+        "group relative rounded-lg border bg-background p-0.5 transition-all",
         width === "wide" ? "w-[320px]" : "w-[280px]",
         selected
           ? "border-[var(--g-selection-background)] shadow-[0_8px_24px_rgba(20,24,38,0.14)]"
           : "border-border/80 shadow-sm hover:border-border hover:shadow-md"
       )}
     >
-      <div className="overflow-hidden rounded-[15px] border border-transparent bg-background">
+      <div className="overflow-hidden rounded-lg border border-transparent bg-background">
         <div className="flex items-center gap-2 px-3 pb-2 pt-3">
           <WorkflowNodeIcon type={nodeType} tone={meta.tone} />
           <div className="min-w-0 flex-1">