test(battle-engine M13): best-effort emit-payload presence (Inconclusive => deferred to structural validation)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

SVSim.BattleEngine.Tests/EmitPathReadOracleTests.cs

@@ -57,6 +57,17 @@ namespace SVSim.BattleEngine.Tests
                 Assert.That(player.CemeteryList, Does.Contain(spell), "spell should land in the cemetery");
                 Assert.That(player.ClassAndInPlayCardList, Does.Not.Contain(spell), "a spell does not occupy the board");
             });
+
+            // Best-effort (F-E-7): with CurrentMatchingStatus seeded non-Disconnected (NewNetworkEmitBattle),
+            // the flow reaches stockEmitMessageMgr.StockData(info); read it back. If the stock machinery is
+            // not drivable headless this milestone, this assertion is DEFERRED to structural validation
+            // (spec §6) — the OnEmit + no-throw + state checks above are the decisive O1 read on their own.
+            var agent = Wizard.ToolboxGame.RealTimeNetworkAgent;
+            var stocked = HeadlessEngineEnv.TryReadStockedEmitData(agent); // returns null if unreachable
+            if (stocked != null)
+                Assert.That(stocked, Is.Not.Empty, "the emitted dict should be stocked non-empty");
+            else
+                Assert.Inconclusive("payload-presence DEFERRED: stock-sequencer not drivable headless (spec §6)");
         }
     }
 }