fix(editor): Address chat UI feedback (no-changelog) (#22819)

packages/frontend/editor-ui/src/features/ai/chatHub/ChatView.vue

@@ -320,6 +320,7 @@ watch(
 	[sessionId, isNewSession],
 	async ([id, isNew]) => {
 		didSubmitInCurrentSession.value = false;
+		editingMessageId.value = undefined;
 
 		if (!isNew && !chatStore.getConversation(id)) {
 			try {
@@ -365,7 +366,7 @@ watch(
 watch(
 	defaultAgent,
 	(agent, prevAgent) => {
-		if (defaultModel.value && agent && agent.name !== prevAgent?.name) {
+		if (defaultModel.value && agent?.name && agent.name !== prevAgent?.name) {
 			defaultModel.value = { ...defaultModel.value, cachedDisplayName: agent.name };
 		}
 

packages/frontend/editor-ui/src/features/ai/chatHub/components/ChatMessage.vue

@@ -114,6 +114,11 @@ function handleConfirmEdit() {
 }
 
 function handleKeydownTextarea(e: KeyboardEvent) {
+	if (e.key === 'Escape') {
+		emit('cancelEdit');
+		return;
+	}
+
 	const trimmed = editedText.value.trim();
 
 	if (e.key === 'Enter' && isCtrlKeyPressed(e) && !e.isComposing && trimmed) {

packages/frontend/editor-ui/src/features/ai/chatHub/components/ChatPrompt.vue

@@ -125,6 +125,8 @@ function handleSubmitForm() {
 function handleKeydownTextarea(e: KeyboardEvent) {
 	const trimmed = message.value.trim();
 
+	speechInput.stop();
+
 	if (e.key === 'Enter' && !e.shiftKey && !e.isComposing && trimmed) {
 		e.preventDefault();
 		speechInput.stop();

packages/frontend/editor-ui/src/features/ai/chatHub/components/ChatSidebarLink.vue

@@ -108,9 +108,9 @@ defineSlots<{
 
 .actionDropdown {
 	opacity: 0;
-	transition: opacity 0.2s;
 	flex-shrink: 0;
 	width: 0;
+	overflow: hidden;
 
 	.menuItem:has([aria-expanded='true']) &,
 	.menuItem:has(:focus) &,