fix(launcher): Campaign LA close LA2 review findings

tests/AcDream.Runtime.Tests/Session/LiveSessionControllerTests.cs

@@ -441,13 +441,13 @@ public sealed class LiveSessionControllerTests
     }
 
     /// <summary>
-    /// The probe short-circuit fires even when the server never returns a
-    /// CharacterList at all (GetCharacters returns null) — a probe is a
-    /// connectivity check, not itself a character-selection operation, so it
-    /// must not fall through to the NoCharacters path.
+    /// Campaign LA LA2 review fix: ProbeComplete proves a real CharacterList
+    /// was received and reported, not merely that the socket connected. A
+    /// missing roster follows the existing NoCharacters non-success path and
+    /// still drains the exact pre-world teardown transaction.
     /// </summary>
     [Fact]
-    public void Start_ProbeWithoutCharacterListStillCompletesGracefully()
+    public void Start_ProbeWithoutCharacterListIsNonSuccessAndTearsDownGracefully()
     {
         var calls = new List<string>();
         var operations = new TestOperations(calls) { Characters = null };
@@ -458,10 +458,25 @@ public sealed class LiveSessionControllerTests
             LiveOptions(probe: true),
             host);
 
-        Assert.Equal(LiveSessionStartStatus.ProbeComplete, result.Status);
+        Assert.Equal(LiveSessionStartStatus.NoCharacters, result.Status);
         Assert.Empty(host.Rosters);
+        Assert.Equal(
+            [
+                "reset", "resolve", "create", "bind", "report-connecting",
+                "connect", "report-connected", "deactivate",
+                "detach-events", "dispose-session", "detach-session", "reset",
+            ],
+            calls);
         Assert.Equal(0, operations.EnterWorldCount);
         Assert.False(controller.IsInWorld);
+        Assert.Null(controller.CurrentSession);
+        Assert.Equal(1, operations.DisposeCounts[operations.Sessions[0]]);
+
+        LiveSessionOwnershipSnapshot ownership = controller.CaptureOwnership();
+        Assert.Equal(RuntimeTeardownStage.Complete, ownership.LastTeardownStages);
+        Assert.False(ownership.HasActiveSession);
+        Assert.False(ownership.HasRetiredSession);
+        Assert.False(ownership.HasPendingOperation);
     }
 
     [Theory]