fix(desktop): submit prompt

packages/ui/src/components/session-turn.tsx

@@ -70,6 +70,7 @@ export function SessionTurn(
   )
   const summary = createMemo(() => message().summary?.body)
   const response = createMemo(() => lastTextPart()?.text)
+  const hasSteps = createMemo(() => assistantParts()?.some((p) => p?.type === "tool"))
 
   const currentTask = createMemo(
     () =>
@@ -315,7 +316,7 @@ export function SessionTurn(
                           <Typewriter as="h1" text={message().summary?.title} data-slot="session-turn-typewriter" />
                         </Match>
                         <Match when={true}>
-                          <h1>{message().summary?.title ?? "New message"}</h1>
+                          <h1>{message().summary?.title}</h1>
                         </Match>
                       </Switch>
                     </div>
@@ -326,6 +327,7 @@ export function SessionTurn(
                   <Message message={message()} parts={parts()} />
                 </div>
                 {/* Trigger (sticky) */}
+                <Show when={working() || hasSteps()}>
                   <div ref={(el) => setStore("stickyTriggerRef", el)} data-slot="session-turn-response-trigger">
                     <Button
                       data-expandable={assistantMessages().length > 0}
@@ -367,6 +369,7 @@ export function SessionTurn(
                       </Show>
                     </Button>
                   </div>
+                </Show>
                 {/* Response */}
                 <Show when={store.stepsExpanded && assistantMessages().length > 0}>
                   <div data-slot="session-turn-collapsible-content-inner">