feat(battle-node): ScriptedLifecycle frame builders (Path-A static opponent)

SVSim.UnitTests/BattleNode/Lifecycle/ScriptedLifecycleTests.cs

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+using NUnit.Framework;
+using SVSim.BattleNode.Lifecycle;
+using SVSim.BattleNode.Protocol;
+
+namespace SVSim.UnitTests.BattleNode.Lifecycle;
+
+[TestFixture]
+public class ScriptedLifecycleTests
+{
+    [Test]
+    public void BuildMatched_PutsOppoIdInSelfInfoEqualToTheRealOpponentVid()
+    {
+        var env = ScriptedLifecycle.BuildMatched(playerViewerId: 906243102, opponentViewerId: 847666884, battleId: "b");
+
+        Assert.That(env.Uri, Is.EqualTo(NetworkBattleUri.Matched));
+        var selfInfo = (Dictionary<string, object?>)env.Body["selfInfo"]!;
+        Assert.That(selfInfo["oppoId"], Is.EqualTo(847666884L));
+        var oppoInfo = (Dictionary<string, object?>)env.Body["oppoInfo"]!;
+        Assert.That(oppoInfo["oppoId"], Is.EqualTo(906243102L));
+    }
+
+    [Test]
+    public void BuildMatched_ContainsThirtyCardSelfDeck()
+    {
+        var env = ScriptedLifecycle.BuildMatched(1, 2, "b");
+        var deck = (List<object?>)env.Body["selfDeck"]!;
+        Assert.That(deck.Count, Is.EqualTo(30));
+    }
+
+    [Test]
+    public void BuildBattleStart_HasTurnStateZeroAndBattleTypeEleven()
+    {
+        var env = ScriptedLifecycle.BuildBattleStart(playerViewerId: 1);
+        Assert.That(env.Body["turnState"], Is.EqualTo(0));
+        Assert.That(env.Body["battleType"], Is.EqualTo(11));
+    }
+
+    [Test]
+    public void BuildDeal_HasThreeSelfAndThreeOppoEntries()
+    {
+        var env = ScriptedLifecycle.BuildDeal();
+        var self = (List<object?>)env.Body["self"]!;
+        var oppo = (List<object?>)env.Body["oppo"]!;
+        Assert.That(self.Count, Is.EqualTo(3));
+        Assert.That(oppo.Count, Is.EqualTo(3));
+    }
+
+    [Test]
+    public void BuildSwapResponse_EchoesSameHandIfNoSwap()
+    {
+        var env = ScriptedLifecycle.BuildSwapResponse(swapIndices: Array.Empty<long>());
+        var self = (List<object?>)env.Body["self"]!;
+        Assert.That(self.Count, Is.EqualTo(3));
+    }
+
+    [Test]
+    public void BuildReady_IncludesIdxChangeSeedAndSpin()
+    {
+        var env = ScriptedLifecycle.BuildReady();
+        Assert.That(env.Body.ContainsKey("idxChangeSeed"), Is.True);
+        Assert.That(env.Body.ContainsKey("spin"), Is.True);
+    }
+}