feat(dogfood-wave1): Studio retries, Chat error, LLM gateway, kill snapshot, topbar cleanup (#14)

src/components/CommandBar.tsx

@@ -14,8 +14,7 @@ export default function CommandBar() {
   const scenarioId = useApp((s) => s.scenarioId);
   const pushRecent = useApp((s) => s.pushRecent);
   const scenarios = useApp((s) => s.scenarios);
-  const mode = useApp((s) => s.mode);
-  const setMode = useApp((s) => s.setMode);
+
   const refreshLive = useApp((s) => s.refreshLive);
   const startInstance = useApp((s) => s.startInstance);
   const executeAction = useApp((s) => s.executeAction);
@@ -50,7 +49,7 @@ export default function CommandBar() {
 
   const close = () => setOpen(false);
 
-  const canActLive = mode === "live" && actor?.user_id && sc?.live && sc.headlineTx;
+  const canActLive = !!actor?.user_id && sc?.live && sc.headlineTx;
   const firstActionId = sc?.steps.find((s) => s.state === "running")?.actions?.[0]?.id;
 
   return (
@@ -137,15 +136,9 @@ export default function CommandBar() {
           </Command.Group>
 
           <Command.Group heading="Preferences">
-            {mode === "live" ? (
-              <Command.Item onSelect={() => { refreshLive(); close(); }}>
-                <Refresh size={13} /> Refresh live data
-              </Command.Item>
-            ) : (
-              <Command.Item onSelect={() => { setMode("live"); close(); }}>
-                <Refresh size={13} /> Switch to live mode
-              </Command.Item>
-            )}
+            <Command.Item onSelect={() => { refreshLive(); close(); }}>
+              <Refresh size={13} /> Refresh live data
+            </Command.Item>
             <Command.Item onSelect={() => { setTheme(theme === "dark" ? "light" : "dark"); close(); }}>
               <Cog size={13} /> Switch to {theme === "dark" ? "light" : "dark"} theme
             </Command.Item>
@@ -160,7 +153,7 @@ export default function CommandBar() {
               <Command.Item
                 onSelect={async () => {
                   close();
-                  if (mode !== "live") { pushToast("warn", "Switch to live mode to start a real instance."); return; }
+                  if (!actor?.user_id) { pushToast("warn", "Sign in to start a real instance."); return; }
                   await startInstance(sc.defKey, `Started via Mission Control · ${new Date().toLocaleString()}`);
                 }}
               >