docs: connect the array builder workflow

tests/integration/builder-ui.test.js

@@ -36,7 +36,7 @@ async function digestHex(blob) {
   return [...new Uint8Array(digest)].map((value) => value.toString(16).padStart(2, "0")).join("");
 }
 
-test("시작 화면과 Dataset Builder가 작업 우선순위 및 390px 레이아웃을 유지한다", async () => {
+test("시작 화면이 세 앱 진입점과 390px 레이아웃을 유지한다", async () => {
   const landingFrame = document.createElement("iframe");
   landingFrame.src = "/";
   landingFrame.style.cssText = "position:fixed;left:-20000px;top:0;width:390px;height:900px;border:0";
@@ -49,9 +49,12 @@ test("시작 화면과 Dataset Builder가 작업 우선순위 및 390px 레이
   try {
     const landingDocument = landingFrame.contentDocument;
     const launchers = [...landingDocument.querySelectorAll(".launcher-card")];
-    assertEqual(launchers.length, 2, "landing exposes only two primary tasks");
+    assertEqual(launchers.length, 3, "landing exposes three primary tasks");
     assert(launchers[0].textContent.includes("Acoustic Camera"), "analysis is the first landing task");
-    assert(launchers[1].textContent.includes("Dataset Builder"), "scene authoring is the second landing task");
+    const launcherPaths = new Set(launchers.map((launcher) => launcher.getAttribute("href")));
+    assert(launcherPaths.has("/apps/dataset-builder/"), "landing links to Dataset Builder");
+    assert(launcherPaths.has("/apps/array-builder/"), "landing links to Array Builder");
+    assert(launcherPaths.has("/apps/acoustic-camera/"), "landing links to Acoustic Camera");
     assert(!landingDocument.querySelector(".workflow-disclosure").open, "file workflow starts collapsed");
     assert(!landingDocument.querySelector('a[href="/docs/execution-plan.md"]'), "developer plan is absent from landing");
     assert(