fix: hide agent model routing lines in chat output

components/message.tsx

@@ -136,6 +136,35 @@ function filterVideoContent(text: string): string {
   return filtered;
 }
 
+/**
+ * 过滤 Agent 里“模型路由说明”这类冗余展示，避免在对话里暴露模型名称行
+ */
+function filterAgentRoutingNoise(text: string): string {
+  if (!text) return text;
+
+  let filtered = text;
+
+  // 1) 去掉“现在我将使用 XXX ...”这类过渡句
+  filtered = filtered.replace(/^现在我将使用.+$/gim, "");
+
+  // 2) 去掉独立的模型名称行（常见为带图标的单行）
+  filtered = filtered.replace(
+    /^\s*[◈◇◆🔹⬡✦•·]\s*[A-Za-z][A-Za-z0-9 .:+\-_/()]{2,}\s*$/gm,
+    "",
+  );
+
+  // 3) 去掉纯模型路由标识行（不带图标）
+  filtered = filtered.replace(
+    /^\s*(?:Routed to|Using model|模型|Model)\s*[:：].*$/gim,
+    "",
+  );
+
+  // 4) 清理多余空行
+  filtered = filtered.replace(/\n{3,}/g, "\n\n").trim();
+
+  return filtered;
+}
+
 const PurePreviewMessage = ({
   chatId,
   message,
@@ -277,7 +306,10 @@ const PurePreviewMessage = ({
                 }
                 
                 // 应用视频内容过滤
-                const filteredText = filterVideoContent(part.text);
+                const filteredText =
+                  message.role === "assistant"
+                    ? filterAgentRoutingNoise(filterVideoContent(part.text))
+                    : part.text;
                 const textParts = parseAnnotations(filteredText);
 
                 return (