add new session button

docs/demos/ai-chat-composer/basic.vue

@@ -8,6 +8,7 @@
 			@send="onSend"
 			@stop="onStop"
 			@retry="onRetry"
+			@new-conversation="onNewConversation"
 		/>
 
 		<div class="bar">
@@ -53,6 +54,11 @@ function onRetry() {
 	error.value = "";
 	push("retry()");
 }
+
+function onNewConversation() {
+	error.value = "";
+	push("new-conversation()");
+}
 </script>
 
 <style lang="less" scoped>

docs/demos/ai-chat-panel/basic.vue

@@ -10,6 +10,7 @@
 				@send="sendMessage"
 				@stop="stopGeneration"
 				@retry="retryLastMessage"
+				@new-conversation="resetConversation"
 			/>
 		</div>
 
@@ -33,7 +34,8 @@ const {
 	canRetry,
 	sendMessage,
 	stopGeneration,
-	retryLastMessage
+	retryLastMessage,
+	resetConversation
 } = useAiChat({
 	request: async ({ message, signal }) => createMockReply(message, signal)
 });