Show folder names immediately and refresh stale index sizes without walking the whole drive.

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/Explorer.Application.Tests/BrowseServiceTests.cs

@@ -37,6 +37,47 @@ public class BrowseServiceTests
         Assert.Contains(listing.Items, i => i.FullPath == LocationRoots.RecycleBin);
     }
 
+    [Fact]
+    public async Task Home_lists_existing_known_folders()
+    {
+        var (browse, store) = await CreateAsync(
+            @"C:\",
+            "C:",
+            knownFolders: new StubKnownFolders(
+            [
+                new KnownUserFolder("Documents", @"C:\Users\Test\Documents", "d"),
+                new KnownUserFolder("Downloads", @"C:\Users\Test\Downloads", "l")
+            ]));
+        var listing = browse.ListHome();
+        Assert.Equal(LocationRoots.Home, listing.Path);
+        Assert.Equal(2, listing.Items.Count);
+        Assert.Equal("Documents", listing.Items[0].DisplayName);
+        Assert.Equal(@"C:\Users\Test\Documents", listing.Items[0].FullPath);
+        Assert.True(listing.Items[0].IsDirectory);
+        await store.DisposeAsync();
+    }
+
+    [Fact]
+    public async Task Favorites_lists_pinned_folders_including_offline()
+    {
+        var missing = Path.Combine(Path.GetTempPath(), "ew-fav-missing", Guid.NewGuid().ToString("N"));
+        var (browse, store) = await CreateAsync(
+            @"C:\",
+            "C:",
+            configurePrefs: prefs => prefs.Save(UiPreferences.Default with
+            {
+                FavoriteFolders = [@"D:\Photos", missing]
+            }));
+        var listing = browse.ListFavorites();
+        Assert.Equal(LocationRoots.Favorites, listing.Path);
+        Assert.Equal(2, listing.Items.Count);
+        Assert.Equal(@"D:\Photos", listing.Items[0].FullPath);
+        Assert.Equal("Photos", listing.Items[0].Name);
+        Assert.Equal(missing, listing.Items[1].FullPath);
+        Assert.Contains("(Offline)", listing.Items[1].DisplayName);
+        await store.DisposeAsync();
+    }
+
     [Fact]
     public async Task This_pc_lists_untracked_network_drives_as_importable()
     {
@@ -211,7 +252,8 @@ public class BrowseServiceTests
         string display,
         IRecycleBinCatalog? recycle = null,
         IFileSystemEnumerator? enumerator = null,
-        Action<UiPreferencesStore>? configurePrefs = null)
+        Action<UiPreferencesStore>? configurePrefs = null,
+        IKnownUserFolderCatalog? knownFolders = null)
     {
         var db = Path.Combine(Path.GetTempPath(), "ew-browse", Guid.NewGuid().ToString("N"), "index.db");
         var store = new SqliteIndexStore(db, NullLogger<SqliteIndexStore>.Instance);
@@ -244,11 +286,17 @@ public class BrowseServiceTests
             new StorageProviderRegistry([], NullLogger<StorageProviderRegistry>.Instance),
             new CloudPlaceStore(env),
             prefs,
-            recycle: recycle);
+            recycle: recycle,
+            knownFolders: knownFolders);
         return (browse, store);
     }
 }
 
+file sealed class StubKnownFolders(IReadOnlyList<KnownUserFolder> folders) : IKnownUserFolderCatalog
+{
+    public IReadOnlyList<KnownUserFolder> ListExisting() => folders;
+}
+
 file sealed class BrowseEnumerator : IFileSystemEnumerator
 {
     public IEnumerable<FileSystemItem> EnumerateChildren(string directoryPath)