feat: add database connections, initial migration and early CLI tooling

Entities/User.cs

@@ -0,0 +1,18 @@
+namespace Shadow.Entities;
+public class User
+{
+	public int Id { get; set; }
+	required public string Name { get; set; }
+	required public string NormalizedName { get; set; }
+	// required public string Email { get; set; } // Currently not used
+	required public string Password { get; set; }
+	public int Role { get; set; } = 1;
+
+	public List<Playlist> Playlists { get; set; } = [];
+	public List<AlbumInteraction> AlbumInteractions { get; set; } = [];
+	public List<SongInteraction> SongInteractions { get; set; } = [];
+
+	public bool IsAdmin() => Role == 0;
+	public bool IsUnpriviledgedUser() => Role == 1;
+
+}