Always show the embedding status in the navigation

app/MindWork AI Studio/Assistants/I18N/allTexts.lua

@@ -8701,6 +8701,9 @@ UI_TEXT_CONTENT["AISTUDIO::LAYOUT::MAINLAYOUT::T3692372066"] = "Show details"
 -- Security notice
 UI_TEXT_CONTENT["AISTUDIO::LAYOUT::MAINLAYOUT::T4004397997"] = "Security notice"
 
+-- All data sources are up to date.
+UI_TEXT_CONTENT["AISTUDIO::LAYOUT::MAINLAYOUT::T4055300176"] = "All data sources are up to date."
+
 -- Information
 UI_TEXT_CONTENT["AISTUDIO::LAYOUT::MAINLAYOUT::T4256323669"] = "Information"
 

app/MindWork AI Studio/Layout/MainLayout.razor.cs

@@ -80,7 +80,7 @@ public partial class MainLayout : LayoutComponentBase, IMessageBusReceiver, ILan
     private readonly SemaphoreSlim mandatoryInfoDialogSemaphore = new(1, 1);
     private readonly SemaphoreSlim promptInjectionDialogSemaphore = new(1, 1);
 
-    private DataSourceEmbeddingOverview embeddingOverview = new(false, DataSourceEmbeddingState.COMPLETED, 0, 0, 0);
+    private DataSourceEmbeddingOverview embeddingOverview = new(DataSourceEmbeddingState.COMPLETED, 0, 0, 0);
     private IReadOnlyCollection<NavBarItem> navItems = [];
     private NavBarItem embeddingItem = new (string.Empty, string.Empty, string.Empty, string.Empty, string.Empty, false);
     private bool showEmbeddingStatusIcon;
@@ -459,13 +459,29 @@ public partial class MainLayout : LayoutComponentBase, IMessageBusReceiver, ILan
     private void LoadEmbeddingItem()
     {
         this.embeddingOverview = this.DataSourceEmbeddingService.GetOverview();
-        this.showEmbeddingStatusIcon = this.embeddingOverview.IsVisible;
+
+        //
+        // The entry is shown whenever local RAG is available, in every state. Hiding it while
+        // nothing was running looked tidier, but a data source which was just added has no status
+        // yet: the service creates one when the run begins. The icon was therefore missing during
+        // the very moment the user was waiting for it. What the entry does communicate is its
+        // state, through the icon below.
+        //
+        // The preview feature is what gates it now. The route itself is not gated, so without this
+        // check, users who have no RAG at all would get a navigation entry for it.
+        //
+        this.showEmbeddingStatusIcon = PreviewFeatures.PRE_RAG_2024.IsEnabled(this.SettingsManager);
+
         var palette = this.ColorTheme.GetCurrentPalette(this.SettingsManager);
         (string icon, string lightcolor, string darkcolor) embeddingIcon = this.embeddingOverview.State switch
         {
-            (DataSourceEmbeddingState.FAILED) => (Icons.Material.Filled.Warning, palette.Error.Value, "#d32f2f"),
+            DataSourceEmbeddingState.FAILED => (Icons.Material.Filled.Warning, palette.Error.Value, "#d32f2f"),
-            (DataSourceEmbeddingState.QUEUED) => (Icons.Material.Filled.Sync, palette.Info.Value, "#1976d2"),
+            DataSourceEmbeddingState.QUEUED => (Icons.Material.Filled.Sync, palette.Info.Value, "#1976d2"),
-            _ => (Icons.Material.Filled.Sync, palette.Warning.Value, "#d29f00"),
+            DataSourceEmbeddingState.RUNNING => (Icons.Material.Filled.Sync, palette.Warning.Value, "#d29f00"),
+
+            // Nothing to do: the entry keeps the colors of its neighbors, so a permanently visible
+            // icon does not draw attention while there is nothing to attend to:
+            _ => (Icons.Material.Filled.CloudDone, palette.DarkLighten, palette.GrayLight),
         };
         this.embeddingItem = new NavBarItem(T("Embeddings"), embeddingIcon.icon, embeddingIcon.lightcolor, embeddingIcon.darkcolor, Routes.EMBEDDINGS, false);
     }
@@ -480,7 +496,10 @@ public partial class MainLayout : LayoutComponentBase, IMessageBusReceiver, ILan
         DataSourceEmbeddingState.FAILED => this.embeddingOverview.FailedFiles > 0
             ? string.Format(T("Some embeddings failed. {0} file(s) need attention."), this.embeddingOverview.FailedFiles)
             : T("Some embeddings failed and need attention."),
-        _ => string.Empty
+
+        // The entry is always visible, so its resting state needs words as well. An empty tooltip
+        // would leave the user guessing what the icon is there for:
+        _ => T("All data sources are up to date.")
     };
 
     private async Task ShowUpdateDialog()

app/MindWork AI Studio/Plugins/languages/de-de-43065dbc-78d0-45b7-92be-f14c2926e2dc/plugin.lua

@@ -8703,6 +8703,9 @@ UI_TEXT_CONTENT["AISTUDIO::LAYOUT::MAINLAYOUT::T3692372066"] = "Details anzeigen
 -- Security notice
 UI_TEXT_CONTENT["AISTUDIO::LAYOUT::MAINLAYOUT::T4004397997"] = "Sicherheitshinweis"
 
+-- All data sources are up to date.
+UI_TEXT_CONTENT["AISTUDIO::LAYOUT::MAINLAYOUT::T4055300176"] = "Alle Datenquellen sind auf dem neuesten Stand."
+
 -- Information
 UI_TEXT_CONTENT["AISTUDIO::LAYOUT::MAINLAYOUT::T4256323669"] = "Information"
 

app/MindWork AI Studio/Plugins/languages/en-us-97dfb1ba-50c4-4440-8dfa-6575daf543c8/plugin.lua

@@ -8703,6 +8703,9 @@ UI_TEXT_CONTENT["AISTUDIO::LAYOUT::MAINLAYOUT::T3692372066"] = "Show details"
 -- Security notice
 UI_TEXT_CONTENT["AISTUDIO::LAYOUT::MAINLAYOUT::T4004397997"] = "Security notice"
 
+-- All data sources are up to date.
+UI_TEXT_CONTENT["AISTUDIO::LAYOUT::MAINLAYOUT::T4055300176"] = "All data sources are up to date."
+
 -- Information
 UI_TEXT_CONTENT["AISTUDIO::LAYOUT::MAINLAYOUT::T4256323669"] = "Information"
 

app/MindWork AI Studio/Tools/Services/DataSourceEmbeddingOverview.cs

@@ -1,3 +1,3 @@
 namespace AIStudio.Tools.Services;
 
-public sealed record DataSourceEmbeddingOverview(bool IsVisible, DataSourceEmbeddingState State, int IndexedFiles, int TotalFiles, int FailedFiles);
+public sealed record DataSourceEmbeddingOverview(DataSourceEmbeddingState State, int IndexedFiles, int TotalFiles, int FailedFiles);

app/MindWork AI Studio/Tools/Services/DataSourceEmbeddingService.cs

@@ -95,7 +95,6 @@ public sealed partial class DataSourceEmbeddingService(SettingsManager settingsM
         {
             var total = Math.Max(activeStatus.TotalFiles, 1);
             return new(
-                true,
                 activeStatus.State,
                 activeStatus.IndexedFiles,
                 total,
@@ -106,9 +105,9 @@ public sealed partial class DataSourceEmbeddingService(SettingsManager settingsM
             .FirstOrDefault(status => status.State is DataSourceEmbeddingState.FAILED || status.FailedFiles > 0);
 
         if (failedStatus is not null)
-            return new(true, DataSourceEmbeddingState.FAILED, failedStatus.IndexedFiles, failedStatus.TotalFiles, failedStatus.FailedFiles);
+            return new(DataSourceEmbeddingState.FAILED, failedStatus.IndexedFiles, failedStatus.TotalFiles, failedStatus.FailedFiles);
 
-        return new(false,  DataSourceEmbeddingState.COMPLETED, 0, 0, 0);
+        return new(DataSourceEmbeddingState.COMPLETED, 0, 0, 0);
     }
 
     public Task QueueAllInternalDataSourcesAsync()