refactor: inline useCommandKey as MOD_KEY constant in two call sites

src/components/chat/view/subcomponents/ProviderSelectionEmptyState.tsx

@@ -3,7 +3,6 @@ import { Check, ChevronDown } from "lucide-react";
 import { useTranslation } from "react-i18next";
 
 import { useServerPlatform } from "../../../../hooks/useServerPlatform";
-import { useCommandKey } from "../../../../hooks/useCommandKey";
 import SessionProviderLogo from "../../../llm-logo-provider/SessionProviderLogo";
 import {
   CLAUDE_MODELS,
@@ -28,6 +27,9 @@ import {
   Card,
 } from "../../../../shared/view/ui";
 
+const MOD_KEY =
+  typeof navigator !== "undefined" && /Mac|iPhone|iPad/.test(navigator.platform) ? "⌘" : "Ctrl";
+
 type ProviderSelectionEmptyStateProps = {
   selectedSession: ProjectSession | null;
   currentSessionId: string | null;
@@ -108,7 +110,6 @@ export default function ProviderSelectionEmptyState({
 }: ProviderSelectionEmptyStateProps) {
   const { t } = useTranslation("chat");
   const { isWindowsServer } = useServerPlatform();
-  const { modKey } = useCommandKey();
   const [dialogOpen, setDialogOpen] = useState(false);
 
   const visibleProviderGroups = useMemo(
@@ -293,7 +294,7 @@ export default function ProviderSelectionEmptyState({
           <p className="mt-3 flex items-center justify-center gap-1.5 text-center text-xs text-muted-foreground/60">
             <span>Press</span>
             <kbd className="inline-flex items-center gap-0.5 rounded border border-border/60 bg-muted/40 px-1.5 py-0.5 font-mono text-[10px]">
-              {modKey}
+              {MOD_KEY}
               <span>K</span>
             </kbd>
             <span>to search sessions, files, and commits</span>

src/components/sidebar/view/subcomponents/SidebarHeader.tsx

@@ -3,9 +3,11 @@ import type { TFunction } from 'i18next';
 import { Button, Input } from '../../../../shared/view/ui';
 import { IS_PLATFORM } from '../../../../constants/config';
 import { cn } from '../../../../lib/utils';
-import { useCommandKey } from '../../../../hooks/useCommandKey';
 import GitHubStarBadge from './GitHubStarBadge';
 
+const MOD_KEY =
+  typeof navigator !== 'undefined' && /Mac|iPhone|iPad/.test(navigator.platform) ? '⌘' : 'Ctrl';
+
 type SearchMode = 'projects' | 'conversations';
 
 type SidebarHeaderProps = {
@@ -41,7 +43,6 @@ export default function SidebarHeader({
   onCollapseSidebar,
   t,
 }: SidebarHeaderProps) {
-  const { modKey } = useCommandKey();
   const LogoBlock = () => (
     <div className="flex min-w-0 items-center gap-2.5">
       <div className="flex h-7 w-7 flex-shrink-0 items-center justify-center rounded-lg bg-primary/90 shadow-sm">
@@ -166,7 +167,7 @@ export default function SidebarHeader({
                   title="Open command palette"
                   className="pointer-events-none absolute right-2.5 top-1/2 hidden -translate-y-1/2 items-center gap-0.5 rounded border border-border/60 bg-muted/40 px-1.5 py-0.5 font-mono text-[10px] text-muted-foreground md:inline-flex"
                 >
-                  {modKey}
+                  {MOD_KEY}
                   <span>K</span>
                 </kbd>
               )}

src/hooks/useCommandKey.ts

@@ -1,10 +0,0 @@
-export type CommandKey = {
-  isMac: boolean;
-  modKey: '⌘' | 'Ctrl';
-};
-
-export function useCommandKey(): CommandKey {
-  const isMac =
-    typeof navigator !== 'undefined' && /Mac|iPhone|iPad/.test(navigator.platform);
-  return { isMac, modKey: isMac ? '⌘' : 'Ctrl' };
-}