Fix onboarding followups (#5064)

* Fix onboarding followups

* Rename sidebar studio to train

studio/frontend/src/components/app-sidebar.tsx

@@ -330,7 +330,7 @@ export function AppSidebar() {
             <SidebarMenu>
               <NavItem
                 icon={ZapIcon}
-                label="Studio"
+                label="Train"
                 active={pathname === "/studio" || pathname.startsWith("/studio/")}
                 disabled={chatOnly}
                 onClick={() => {
@@ -511,7 +511,7 @@ export function AppSidebar() {
                   />
                   <div className="flex flex-col gap-0.5 leading-none group-data-[collapsible=icon]:hidden">
                     <span className="truncate text-sm font-semibold">Unsloth</span>
-                    <span className="truncate text-[11px] text-muted-foreground">Studio</span>
+                    <span className="truncate text-[11px] text-muted-foreground">Train</span>
                   </div>
                   <ChevronsUpDown strokeWidth={1.25} className="ml-auto size-4 text-muted-foreground group-data-[collapsible=icon]:hidden" />
                 </SidebarMenuButton>

studio/frontend/src/features/onboarding/components/wizard-footer.tsx

@@ -69,7 +69,7 @@ export function WizardFooter({
                 if (currentStep === 1 && sessionStorage.getItem("unsloth_chat_only") === "1") {
                   sessionStorage.removeItem("unsloth_chat_only");
                   markOnboardingDone();
-                  window.location.assign(returnTo);
+                  window.location.assign("/chat");
                 } else {
                   nextStep();
                 }

studio/frontend/src/features/settings/tabs/general-tab.tsx

@@ -12,6 +12,7 @@ import {
 } from "@/components/ui/dialog";
 import { Input } from "@/components/ui/input";
 import { Switch } from "@/components/ui/switch";
+import { usePlatformStore } from "@/config/env";
 import { resetOnboardingDone } from "@/features/auth";
 import { useChatRuntimeStore } from "@/features/chat/stores/chat-runtime-store";
 import { useSettingsDialogStore } from "@/features/settings";
@@ -95,6 +96,7 @@ export function GeneralTab() {
   const setHfToken = useChatRuntimeStore((s) => s.setHfToken);
   const autoTitle = useChatRuntimeStore((s) => s.autoTitle);
   const setAutoTitle = useChatRuntimeStore((s) => s.setAutoTitle);
+  const chatOnly = usePlatformStore((s) => s.chatOnly);
   const redirectTo = `${pathname}${search}`;
 
   const [draftToken, setDraftToken] = useState(hfToken ?? "");
@@ -170,24 +172,26 @@ export function GeneralTab() {
         </SettingsRow>
       </SettingsSection>
 
-      <SettingsSection title="Getting started">
-        <SettingsRow
-          label="Start onboarding"
-          description="Open the setup wizard again without changing your account."
-        >
-          <Button
-            variant="outline"
-            size="sm"
-            onClick={() => {
-              resetOnboardingDone();
-              closeDialog();
-              navigate({ to: "/onboarding", search: { redirectTo } });
-            }}
+      {!chatOnly && (
+        <SettingsSection title="Getting started">
+          <SettingsRow
+            label="Start onboarding"
+            description="Open the setup wizard again without changing your account."
           >
-            Start onboarding
-          </Button>
-        </SettingsRow>
-      </SettingsSection>
+            <Button
+              variant="outline"
+              size="sm"
+              onClick={() => {
+                resetOnboardingDone();
+                closeDialog();
+                navigate({ to: "/onboarding", search: { redirectTo } });
+              }}
+            >
+              Start onboarding
+            </Button>
+          </SettingsRow>
+        </SettingsSection>
+      )}
 
       <SettingsSection title="Danger zone">
         <SettingsRow