Init repo

src/MissionControl.Domain/Entities/Mission.cs

@@ -0,0 +1,14 @@
+namespace MissionControl.Domain.Entities;
+
+public class Mission
+{
+    public Guid Id { get; init; } = Guid.NewGuid();
+
+    public required string Name { get; set; }
+
+    public string? Description { get; set; }
+
+    public MissionStatus Status { get; set; } = MissionStatus.Planned;
+
+    public DateTimeOffset CreatedAt { get; init; } = DateTimeOffset.UtcNow;
+}