fix(frontend): deduplicate live workflow activity

frontend/src/shell/AppShell.tsx

@@ -279,7 +279,7 @@ export function AppShell() {
   // The harness "holds the ball" whenever a session is live, no widget is waiting on
   // the human, AND the Pi turn is still in flight (agentActive). Without the last
   // condition the final workflow step — which ends with no follow-up gate — would
-  // leave the spinner on forever.
+  // leave the working state on forever.
   const pendingWidget = useSessionStore((s) => s.pendingWidget);
   const resetSession = useSessionStore((s) => s.resetSession);
   const recordLifecycle = useSessionStore((s) => s.recordLifecycle);
@@ -289,7 +289,7 @@ export function AppShell() {
   const agentActive = useSessionStore((s) => s.agentActive);
   const sessionViewOpen = Boolean(activeSessionId) || creatingSession;
   const working = sessionViewOpen && !pendingWidget && agentActive;
-  // Processing time counts only while the harness works, not while a finalized
+  // The workflow bar runs only while the harness works, not while a finalized
   // session sits idle or a gate awaits the reviewer (pendingWidget).
   const running = working && !finalized;
 
@@ -336,7 +336,7 @@ export function AppShell() {
   }
 
   function finishSessionCreation(id: string) {
-    // React batches these updates, preserving the provisional view and timer
+    // React batches these updates, preserving the provisional session view
     // while useSessionStream opens the durable session's SSE channel.
     selectActiveSession(id);
     setCreatingSession(false);
@@ -406,10 +406,7 @@ export function AppShell() {
           <div className="mx-auto flex max-w-4xl flex-col gap-6">
             {sessionViewOpen ? (
               <>
-                <CentralStatus
-                  working={working}
-                  workingLabel={creatingSession ? "Creating session…" : "Analyzing question…"}
-                />
+                <CentralStatus working={working} />
                 {activeSessionId && <WidgetHost sessionId={activeSessionId} />}
                 {finalized && !agentActive && (
                   <div className="rounded-2xl border border-border/80 bg-card p-5 text-center shadow-md">