Implement five CHOAM Nexus Cunning effects with private costs and recovery

tests/nexus-choam-audit.test.ts

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+import test from 'node:test';
+import assert from 'node:assert/strict';
+import {
+  applyAction,
+  viewGame,
+  normalizeAutomaticGame,
+  type Game,
+} from '../game/engine';
+import {
+  nexusChoamFixture,
+  nexusChoamRequest,
+  nexusChoamReload,
+} from './fixture-nexus-choam';
+
+for (const effect of ['laLaLa', 'baliset', 'jubba'] as const) {
+  void test(`CHOAM Cunning ${effect} binds its original suspended operation before a valid-looking saved replacement`, () => {
+    const f = nexusChoamFixture(effect);
+    const pending = applyAction(f.g, f.owner, nexusChoamRequest(f));
+    const g = nexusChoamReload(pending);
+    // Each replacement would be legal by itself. It was not the operation
+    // which earned this genuine reaction and cannot replace that saved parent.
+    if (effect === 'laLaLa') {
+      assert.equal(g.pendingRevival!.amount, 3);
+      g.pendingRevival!.amount = 2;
+      g.pendingRevival!.normalCost = 2;
+      g.pendingRevival!.cost = 2;
+    } else if (effect === 'baliset') {
+      assert.equal(g.pendingChoamMove!.total, 2);
+      g.pendingChoamMove!.total = 1;
+      g.pendingChoamMove!.group[0][1] = 1;
+    } else {
+      assert.equal(g.stormResolution!.distance, 3);
+      g.stormResolution!.distance = 4;
+    }
+    const before = JSON.stringify(g);
+    const checks: ((state: Game) => unknown)[] = [
+      ...g.players.map((p) => (state: Game) => viewGame(state, p.id)),
+      (state) => normalizeAutomaticGame(state),
+      (state) =>
+        applyAction(state, f.target, {
+          type: 'card',
+          mode: 'cancel',
+          card: f.karama,
+        }),
+      (state) => applyAction(state, f.owner, { type: 'passResponse' }),
+    ];
+    for (const check of checks) {
+      assert.throws(
+        () => check(g),
+        /CHOAM|Cunning|original|parent|source|continuation/i,
+      );
+      assert.equal(JSON.stringify(g), before);
+    }
+  });
+}