fix: announce 3d camera orientation

tests/integration/array-builder-ui.test.js

@@ -282,6 +282,10 @@ test("Array Builder가 preset·직접 편집·검증·표준 JSON round trip을
     const beamAxisView = documentObject.querySelector("#beam-pattern-axis-view");
     assertEqual(beamAxisView.value, "iso", "3D beam surface starts in isometric view");
     assertEqual(beamSurface.dataset.viewAxis, "iso", "beam canvas exposes isometric provenance");
+    assert(
+      beamSurface.getAttribute("aria-label").includes("등각 원점 보기"),
+      "beam canvas accessible name exposes its current view",
+    );
     const beamComputeBeforeAxisView =
       documentObject.documentElement.dataset.beamPatternComputeMs;
     const beamFrequencyBeforeAxisView = beamSurface.dataset.frequencyHz;
@@ -357,6 +361,10 @@ test("Array Builder가 preset·직접 편집·검증·표준 JSON round trip을
     );
     assertEqual(beamSurface.dataset.viewAxis, "custom", "beam drag enters free-orbit mode");
     assertEqual(beamAxisView.value, "custom", "beam view selector reflects free orbit");
+    assert(
+      beamSurface.getAttribute("aria-label").includes("자유 회전"),
+      "beam canvas accessible name follows free orbit",
+    );
     beamSurface.dispatchEvent(new windowObject.KeyboardEvent("keydown", {
       bubbles: true,
       cancelable: true,
@@ -365,6 +373,10 @@ test("Array Builder가 preset·직접 편집·검증·표준 JSON round trip을
     await nextPaint(windowObject);
     assertEqual(beamSurface.dataset.viewAxis, "iso", "beam R shortcut restores isometric view");
     assertEqual(beamAxisView.value, "iso", "beam selector follows the R shortcut");
+    assert(
+      beamSurface.getAttribute("aria-label").includes("등각 원점 보기"),
+      "beam accessible name follows the R shortcut",
+    );
     assertEqual(
       documentObject.documentElement.dataset.beamPatternComputeMs,
       beamComputeBeforeAxisView,
@@ -446,6 +458,10 @@ test("Array Builder가 preset·직접 편집·검증·표준 JSON round trip을
     const arrayAxisView = documentObject.querySelector("#array-axis-view");
     assert(!arrayAxisControl.hidden, "array axis selector appears only for 3D inspection");
     assertEqual(arrayAxisView.value, "iso", "array 3D starts in isometric view");
+    assert(
+      canvas.getAttribute("aria-label").includes("등각 원점 보기"),
+      "array canvas accessible name exposes its current view",
+    );
     const arraySaveStateBeforeAxisView =
       documentObject.querySelector("#save-state").textContent;
     const array3dBeforeAxisView = canvas.toDataURL();
@@ -517,6 +533,10 @@ test("Array Builder가 preset·직접 편집·검증·표준 JSON round trip을
     );
     assertEqual(canvas.dataset.viewAxis, "custom", "array drag enters free-orbit mode");
     assertEqual(arrayAxisView.value, "custom", "array view selector reflects free orbit");
+    assert(
+      canvas.getAttribute("aria-label").includes("자유 회전"),
+      "array canvas accessible name follows free orbit",
+    );
     assertEqual(
       documentObject.querySelector('#microphone-list [aria-selected="true"]')
         ?.dataset.microphoneId,
@@ -531,6 +551,10 @@ test("Array Builder가 preset·직접 편집·검증·표준 JSON round trip을
     await nextPaint(windowObject);
     assertEqual(canvas.dataset.viewAxis, "iso", "array R shortcut restores isometric view");
     assertEqual(arrayAxisView.value, "iso", "array selector follows the R shortcut");
+    assert(
+      canvas.getAttribute("aria-label").includes("등각 원점 보기"),
+      "array accessible name follows the R shortcut",
+    );
     assertEqual(
       documentObject.querySelector("#save-state").textContent,
       arraySaveStateBeforeAxisView,