fix: refresh fleet provider snapshot on reload

Author: KSemenenko

DotPilot.Tests/Workspace/Services/StartupWorkspaceHydrationTests.cs

@@ -46,7 +46,7 @@ public async Task EnsureHydratedAsyncKeepsHydrationRetryableAfterATransientWorks
         var databasePath = Path.Combine(blockedDirectoryPath, "dotpilot-agent-sessions.db");
 
         Directory.CreateDirectory(rootPath);
-        await File.WriteAllTextAsync(blockedDirectoryPath, "blocked");
+        Directory.CreateDirectory(blockedDirectoryPath);
 
         try
         {
@@ -56,6 +56,9 @@ public async Task EnsureHydratedAsyncKeepsHydrationRetryableAfterATransientWorks
             });
             var hydration = fixture.Provider.GetRequiredService<IStartupWorkspaceHydration>();
 
+            Directory.Delete(blockedDirectoryPath);
+            await File.WriteAllTextAsync(blockedDirectoryPath, "blocked");
+
             await hydration.EnsureHydratedAsync(CancellationToken.None);
 
             hydration.IsHydrating.Should().BeFalse();

DotPilot/Presentation/Chat/ViewModels/ChatModel.cs

@@ -94,7 +94,13 @@ public async ValueTask Refresh(CancellationToken cancellationToken)
                 return;
             }
 
-            fleetProviderSnapshotStale = true;
+            if (refresh.TryGetValue(out var workspace))
+            {
+                fleetProviderSnapshot = [.. workspace.Providers];
+                hasFleetProviderSnapshot = true;
+                fleetProviderSnapshotStale = false;
+            }
+
             _workspaceRefresh.Raise();
             _sessionRefresh.Raise();
             await EnsureSelectedChatAsync(cancellationToken);