feat(runtime): share chat commands and run login sequence

tests/AcDream.Launcher.Core.Tests/Orchestration/LauncherOrchestratorTests.cs

@@ -106,6 +106,44 @@ public sealed class LauncherOrchestratorTests : IDisposable
         Assert.Contains("+Acdream", inWorld.Status, StringComparison.Ordinal);
     }
 
+    [Fact]
+    public async Task LoginCommandFailureIsVisibleButDoesNotMakeTheSessionTerminal()
+    {
+        var statusSources = new QueueStatusSourceFactory();
+        using LauncherOrchestrator orchestrator = CreateOrchestrator(
+            statusSourceFactory: statusSources);
+        _ = await orchestrator.LaunchAsync(
+            "Local ACE",
+            "testaccount",
+            "+Acdream",
+            LaunchMode.Headless);
+
+        QueueStatusSource source = Assert.Single(statusSources.Created);
+        source.Enqueue(Connected("s1"));
+        source.Enqueue(EnteredWorld("s1", "+Acdream"));
+        source.Enqueue(new LoginCommandFailedStatusEvent
+        {
+            V = 1,
+            E = "loginCommandFailed",
+            T = DateTimeOffset.UtcNow,
+            SessionId = "s1",
+            CommandIndex = 2,
+            Command = "/version",
+            Error = "not available in the headless host",
+        });
+
+        orchestrator.PollStatus();
+
+        LauncherSessionSnapshot session = Assert.Single(
+            orchestrator.GetSnapshot().Sessions);
+        Assert.Equal(LauncherActivityState.InWorld, session.State);
+        Assert.Equal(
+            "Login command 2 failed: not available in the headless host",
+            session.Error);
+        Assert.Equal(session.Error, session.Status);
+        Assert.Null(session.ExitCode);
+    }
+
     [Fact]
     public async Task AccountGuiSelectDoesNotRequireACachedCharacterOrEmitASelector()
     {