Preserve back navigation when opening settings (#5930)

Co-authored-by: codex <codex@users.noreply.github.com>

Author: juliusmarminge

apps/web/src/components/AppSidebarLayout.tsx

@@ -20,6 +20,7 @@ import ThreadSidebar from "./Sidebar";
 import { SettingsSidebarNav } from "./settings/SettingsSidebarNav";
 import { SidebarChromeHeader } from "./sidebar/SidebarChrome";
 import { useSidebarStageBackdropVariant } from "./SidebarStageBackdrop";
+import { useProjects } from "../state/entities";
 import {
   resolveInitialThreadSidebarWidth,
   resolveThreadSidebarMaximumWidth,
@@ -118,6 +119,14 @@ function SidebarControl() {
   );
 }
 
+// Settings swaps the thread sidebar out of the tree. Keep the lightweight
+// project projection subscribed so returning to a draft never renders the
+// zero-project state while the environment snapshot reconnects.
+function ProjectProjectionRetention() {
+  useProjects();
+  return null;
+}
+
 export function AppSidebarLayout({ children }: { children: ReactNode }) {
   const navigate = useNavigate();
   const legacySidebarEnabled = useLegacySidebarEnabled();
@@ -184,6 +193,7 @@ export function AppSidebarLayout({ children }: { children: ReactNode }) {
 
   return (
     <SidebarProvider className="h-dvh! min-h-0!" defaultOpen style={sidebarProviderStyle}>
+      <ProjectProjectionRetention />
       <Sidebar
         side="left"
         collapsible="offcanvas"