FN-6075: stabilize board workflow toolbar tests

Keep board workflow tests aligned with the collapsible toolbar UI.\n\n- exclude the workflow collapse toggle from toolbar action aria-label assertions in Board tests\n- extend task detail modal lucide-react mocks with the Bell icon used by the updated UI\n\nFiles changed:\n packages/dashboard/app/components/__tests__/Board.test.tsx            | 4 +++-\n .../app/components/__tests__/TaskDetailModal.test-helpers.ts          | 1 +\n 2 files changed, 4 insertions(+), 1 deletion(-)

Fusion-Task-Id: FN-6075

Fusion-Task-Lineage: 65d7317b-2623-409f-af71-a4512b7919e1

packages/dashboard/app/components/__tests__/Board.test.tsx

@@ -934,7 +934,9 @@ describe("Board", () => {
     function workflowToolbarActionNames() {
       const toolbar = document.querySelector(".board-workflow-toolbar");
       expect(toolbar).not.toBeNull();
-      return Array.from(toolbar?.querySelectorAll("button") ?? []).map((button) => button.getAttribute("aria-label"));
+      return Array.from(toolbar?.querySelectorAll("button") ?? [])
+        .filter((button) => !button.classList.contains("board-workflow-collapse-toggle"))
+        .map((button) => button.getAttribute("aria-label"));
     }
 
     it("flag OFF renders the legacy single-lane board byte-identically", async () => {

packages/dashboard/app/components/__tests__/TaskDetailModal.test-helpers.ts

@@ -81,6 +81,7 @@ vi.mock("lucide-react", () => ({
   ClipboardCheck: () => null,
   ListChecks: () => null,
   Code2: () => null,
+  Bell: () => null,
 }));
 
 vi.mock("../../hooks/useAgentLogs", () => ({