feat: update webui extensions, models, and agent config

.pi/agent/extensions/webui/backend/routes/extension-ui.ts

@@ -0,0 +1,25 @@
+import type { IncomingMessage, ServerResponse } from "node:http";
+import type { WebUiContext } from "../types/context.ts";
+import { json, readBody } from "../http/request.ts";
+
+export function handleExtensionUiRoute(
+	req: IncomingMessage,
+	res: ServerResponse,
+	ctx: WebUiContext,
+	pathname: string,
+): boolean {
+	if (req.method !== "POST" || pathname !== "/api/extension-ui-response") {
+		return false;
+	}
+
+	void readBody(req)
+		.then(({ id, response }) => {
+			if (typeof id !== "string" || !id.trim()) throw new Error("缺少 extension UI 响应 id");
+			if (!response || typeof response !== "object") throw new Error("缺少 extension UI 响应内容");
+			ctx.rpc.sendExtensionUiResponse(id, response as Record<string, unknown>);
+			json(res, { ok: true });
+		})
+		.catch((err) => json(res, { error: err.message }, 500));
+
+	return true;
+}