fix(frontend): prevent submit during IME composition (#1562)

frontend/src/app/workspace/agents/new/page.tsx

@@ -20,6 +20,7 @@ import { checkAgentName, getAgent } from "@/core/agents/api";
 import { useI18n } from "@/core/i18n/hooks";
 import { useThreadStream } from "@/core/threads/hooks";
 import { uuid } from "@/core/utils/uuid";
+import { isIMEComposing } from "@/lib/ime";
 import { cn } from "@/lib/utils";
 
 type Step = "name" | "chat";
@@ -98,7 +99,7 @@ export default function NewAgentPage() {
   ]);
 
   const handleNameKeyDown = (e: React.KeyboardEvent<HTMLInputElement>) => {
-    if (e.key === "Enter") {
+    if (e.key === "Enter" && !isIMEComposing(e)) {
       e.preventDefault();
       void handleConfirmName();
     }