fix assistant prompt submission

apps/nextjs/src/components/assistant/assistant-send.ts

@@ -1,13 +1,22 @@
-type AssistantComposerActions = {
-  setText: (text: string) => void;
-  send: () => void;
+import type { AssistantClient } from "@assistant-ui/react";
+
+type AssistantRunConfig = ReturnType<ReturnType<AssistantClient["composer"]>["getState"]>["runConfig"];
+type AssistantAppendMessage = Parameters<ReturnType<AssistantClient["thread"]>["append"]>[0];
+
+type AssistantPromptRuntime = {
+  composer: () => { getState: () => { runConfig: AssistantRunConfig } };
+  thread: () => { append: (message: AssistantAppendMessage) => void };
 };
 
-export const sendAssistantPrompt = (composer: AssistantComposerActions, prompt: string) => {
+export const sendAssistantPrompt = (runtime: AssistantPromptRuntime, prompt: string) => {
   const text = prompt.trim();
   if (text.length === 0) return false;
 
-  composer.setText(text);
-  composer.send();
+  runtime.thread().append({
+    role: "user",
+    content: [{ type: "text", text }],
+    runConfig: runtime.composer().getState().runConfig,
+    startRun: true,
+  });
   return true;
 };