Reduce step-finish usage chip DOM

packages/ui/src/components/tool-call.tsx

@@ -56,7 +56,9 @@ interface ToolCallProps {
   partVersion?: number
   instanceId: string
   sessionId: string
-}
+  onContentRendered?: () => void
+ }
+
 
 function getToolIcon(tool: string): string {
   switch (tool) {
@@ -761,8 +763,10 @@ export default function ToolCall(props: ToolCallProps) {
       if (!options?.disableScrollTracking) {
         handleScrollRendered()
       }
+      props.onContentRendered?.()
     }
 
+
     return (
       <div
         class="message-text tool-call-markdown tool-call-markdown-large tool-call-diff-shell"
@@ -826,8 +830,10 @@ export default function ToolCall(props: ToolCallProps) {
     const handleMarkdownRendered = () => {
       markdownCache.set(markdownPart.renderCache)
       handleScrollRendered()
+      props.onContentRendered?.()
     }
 
+
     return (
       <div
         class={messageClass}