fix: switch to imported space after ZIP import completes

The SpaceImportDialog's onImportComplete callback was ignoring the
spaceId and spaceName parameters, so after importing a space from ZIP
the app would only refresh the manifest but never actually switch to
the imported space — leaving the user on the old space with stale data.

Now properly saves current space state, updates the manifest, and
switches to the newly imported space.

https://claude.ai/code/session_01WsFd9hPNmHcP9kJCj7fZHM

Author: claude

packages/ui/src/components/App.tsx

@@ -1089,10 +1089,13 @@ export function App() {
         onClose={() => setSpaceImportDialogOpen(false)}
         backend={backend}
         spaces={spaceInfoList.filter((s) => s.id !== 'cept-docs').map((s) => ({ id: s.id, name: s.name }))}
-        onImportComplete={() => {
-          // Refresh space list after import
+        onImportComplete={(importedSpaceId, importedSpaceName) => {
+          // Save current space state, refresh manifest, and switch to the imported space
+          saveCurrentSpaceState(userSpaceId, pages, favorites, recentPages, selectedPageId, spaceName, pageContents);
           void loadSpaces(backend).then((manifest) => {
             setSpacesManifest(manifest);
+            setUserSpaceId(importedSpaceId);
+            void loadAndApplySpaceState(importedSpaceId, importedSpaceName);
           });
         }}
       />