fix(desktop): restore native text editing shortcuts in chat and auto-focus on pane nav

apps/desktop/src/renderer/components/Chat/ChatInterface/components/ChatInputFooter/ChatInputFooter.tsx

@@ -10,6 +10,7 @@ import type { ChatStatus, FileUIPart } from "ai";
 import type React from "react";
 import type { ReactNode } from "react";
 import { useCallback, useRef, useState } from "react";
+import { useFocusPromptOnPane } from "renderer/components/Chat/ChatInterface/hooks/useFocusPromptOnPane";
 import { useHotkeyText } from "renderer/stores/hotkeys";
 import type { SlashCommand } from "../../hooks/useSlashCommands";
 import type { ModelOption, PermissionMode } from "../../types";
@@ -74,6 +75,7 @@ export function ChatInputFooter({
 	onStop,
 	onSlashCommandSend,
 }: ChatInputFooterProps) {
+	useFocusPromptOnPane(isFocused);
 	const [issueLinkOpen, setIssueLinkOpen] = useState(false);
 	const [linkedIssues, setLinkedIssues] = useState<LinkedIssue[]>([]);
 	const inputRootRef = useRef<HTMLDivElement>(null);

apps/desktop/src/renderer/components/Chat/ChatInterface/hooks/useFocusPromptOnPane.ts

@@ -0,0 +1,12 @@
+import { usePromptInputController } from "@superset/ui/ai-elements/prompt-input";
+import { useEffect } from "react";
+
+export function useFocusPromptOnPane(isFocused: boolean) {
+	const { textInput } = usePromptInputController();
+
+	useEffect(() => {
+		if (isFocused) {
+			textInput.focus();
+		}
+	}, [isFocused, textInput]);
+}

apps/desktop/src/renderer/routes/_authenticated/_dashboard/v2-workspace/$workspaceId/components/WorkspaceChat/components/WorkspaceChatInterface/components/ChatInputFooter/ChatInputFooter.tsx

@@ -12,6 +12,7 @@ import type { ReactNode } from "react";
 import { useCallback, useRef, useState } from "react";
 import { IssueLinkCommand } from "renderer/components/Chat/ChatInterface/components/IssueLinkCommand";
 import { SlashCommandInput } from "renderer/components/Chat/ChatInterface/components/SlashCommandInput";
+import { useFocusPromptOnPane } from "renderer/components/Chat/ChatInterface/hooks/useFocusPromptOnPane";
 import type { SlashCommand } from "renderer/components/Chat/ChatInterface/hooks/useSlashCommands";
 import type {
 	ModelOption,
@@ -81,6 +82,7 @@ export function ChatInputFooter({
 	onStop,
 	onSlashCommandSend,
 }: ChatInputFooterProps) {
+	useFocusPromptOnPane(isFocused);
 	const [issueLinkOpen, setIssueLinkOpen] = useState(false);
 	const [linkedIssues, setLinkedIssues] = useState<LinkedIssue[]>([]);
 	const inputRootRef = useRef<HTMLDivElement>(null);

packages/ui/src/components/ai-elements/prompt-input.tsx

@@ -155,7 +155,11 @@ export function PromptInputProvider({
 	const clearInput = useCallback(() => setTextInput(""), []);
 	const textareaRef = useRef<HTMLTextAreaElement | null>(null);
 	const focus = useCallback(() => {
-		textareaRef.current?.focus();
+		const el = textareaRef.current;
+		if (!el) return;
+		el.focus();
+		const len = el.value.length;
+		el.setSelectionRange(len, len);
 	}, []);
 	const __registerTextarea = useCallback(
 		(ref: RefObject<HTMLTextAreaElement | null>) => {
@@ -960,6 +964,14 @@ export const PromptInputTextarea = ({
 	}, [controller]);
 
 	const handleKeyDown: KeyboardEventHandler<HTMLTextAreaElement> = (e) => {
+		// Prevent modifier+arrow combos from bubbling to pane-navigation hotkeys
+		if (
+			(e.key === "ArrowLeft" || e.key === "ArrowRight") &&
+			(e.metaKey || e.ctrlKey)
+		) {
+			e.stopPropagation();
+		}
+
 		if (e.key === "Enter") {
 			if (isComposing || e.nativeEvent.isComposing) {
 				return;