feat: add built-in array comparison

tests/integration/camera-ui.test.js

@@ -124,6 +124,17 @@ test("Acoustic Camera가 8×8 CPU 실행·결과 저장·stale·재실행 흐름
         !documentObject.querySelector("#run-button").disabled,
       "original comparison configuration restore",
     );
+    dispatchValue(
+      windowObject,
+      documentObject.querySelector("#array-preset"),
+      "fermat-spiral-192",
+    );
+    await waitFor(
+      () => documentObject.querySelector("#array-title").textContent.includes("Fermat") &&
+        documentObject.documentElement.dataset.cameraValid === "true" &&
+        !documentObject.querySelector("#run-button").disabled,
+      "Fermat comparison array",
+    );
 
     documentObject.querySelector("#run-button").click();
     await waitFor(
@@ -138,6 +149,9 @@ test("Acoustic Camera가 8×8 CPU 실행·결과 저장·stale·재실행 흐름
     );
     assert(!documentObject.querySelector("#result-badge").textContent.includes("이전 설정"), "fresh result badge");
     assertEqual(documentObject.querySelectorAll("#history-list .history-card").length, 2, "rerun history");
+    const historyText = documentObject.querySelector("#history-list").textContent;
+    assert(historyText.includes("rectangular baseline"), "baseline history retained");
+    assert(historyText.includes("Fermat spiral"), "comparison array history added");
   } finally {
     windowObject.HTMLAnchorElement.prototype.click = originalAnchorClick;
     windowObject.URL.revokeObjectURL = originalRevoke;

tests/unit/contracts.test.js

@@ -18,6 +18,21 @@ test("192채널 기준 배열이 계약을 통과한다", async () => {
   assertEqual((await validateArrayDefinition(arrayDefinition)).length, 0, "array issues");
 });
 
+test("192채널 Fermat spiral 비교 배열이 계약과 원형 aperture를 만족한다", async () => {
+  const arrayDefinition = await loadJson("/assets/array-geometries/fermat-spiral-192.array.json");
+  assertEqual(arrayDefinition.microphones.length, 192, "spiral microphone count");
+  assertEqual((await validateArrayDefinition(arrayDefinition)).length, 0, "spiral array issues");
+  const maximumRadius = Math.max(
+    ...arrayDefinition.microphones.map(({ position }) => Math.hypot(position[0], position[1])),
+  );
+  assert(maximumRadius <= 0.225001, `spiral aperture radius: ${maximumRadius}`);
+  assertEqual(
+    new Set(arrayDefinition.microphones.map(({ position }) => position.join(","))).size,
+    192,
+    "spiral positions are unique",
+  );
+});
+
 test("단일 tone 장면과 실험이 관계 검증을 통과한다", async () => {
   const [arrayDefinition, scene, experiment] = await Promise.all([
     loadJson("/assets/array-geometries/rectangular-16x12.array.json"),