feat: add icon property to workflow node specifications and update related components

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

@@ -4,14 +4,14 @@ import { cn } from "@/lib/utils"
 import { WorkflowNodeIcon } from "./workflow-node-icon"
 
 export function WorkflowNodeCard({
-  nodeType,
   title,
+  icon,
   selected,
   width = "normal",
   children,
 }: {
-  nodeType: string
   title: string
+  icon: string
   selected: boolean
   width?: "normal" | "wide"
   children?: ReactNode
@@ -28,7 +28,7 @@ export function WorkflowNodeCard({
     >
       <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} />
+          <WorkflowNodeIcon icon={icon} />
           <div className="min-w-0 flex-1">
             <div className="truncate text-sm font-semibold leading-5 text-foreground">
               {title}