changed to sqlite connection to ef core

app/MindWork AI Studio/Tools/Databases/EmbeddingState/EmbeddingStateDesignTimeDbContextFactory.cs

@@ -0,0 +1,15 @@
+using Microsoft.EntityFrameworkCore.Design;
+
+namespace AIStudio.Tools.Databases.EmbeddingState;
+
+internal sealed class EmbeddingStateDesignTimeDbContextFactory : IDesignTimeDbContextFactory<EmbeddingStateDbContext>
+{
+    public EmbeddingStateDbContext CreateDbContext(string[] args)
+    {
+        var databasePath = args.FirstOrDefault(argument => argument.EndsWith(".sqlite3", StringComparison.OrdinalIgnoreCase));
+        if (string.IsNullOrWhiteSpace(databasePath))
+            databasePath = Path.Combine(Path.GetTempPath(), "mindwork-ai-studio-rag-index-design.sqlite3");
+
+        return new EmbeddingStateDbContext(EmbeddingStateDbContext.CreateOptions(databasePath));
+    }
+}