feat: play moving-source acoustic timelines

tests/unit/contracts.test.js

@@ -11,6 +11,24 @@ async function loadJson(path) {
   return response.json();
 }
 
+test("moving-tone sample Scene and Experiment satisfy their linked contracts", async () => {
+  const [arrayDefinition, scene, experiment] = await Promise.all([
+    loadJson("/assets/array-geometries/rectangular-16x12.array.json"),
+    loadJson("/assets/sample-scenes/moving-tone.scene.json"),
+    loadJson("/assets/sample-scenes/moving-tone.experiment.json"),
+  ]);
+  const sceneIssues = await validateScene(scene);
+  const experimentIssues = await validateExperiment(experiment, { arrayDefinition, scene });
+
+  assertEqual(sceneIssues.length, 0, `moving Scene issues: ${JSON.stringify(sceneIssues)}`);
+  assertEqual(experimentIssues.length, 0, `moving Experiment issues: ${JSON.stringify(experimentIssues)}`);
+  assertEqual(experiment.sceneId, scene.id, "moving example linkage");
+  assert(
+    scene.sources.some((source) => Array.isArray(source.trajectory) && source.trajectory.length >= 2),
+    "moving example contains a usable trajectory",
+  );
+});
+
 test("192채널 기준 배열이 계약을 통과한다", async () => {
   const arrayDefinition = await loadJson("/assets/array-geometries/rectangular-16x12.array.json");
   assertEqual(arrayDefinition.microphones.length, 192, "microphone count");