test(dashboard): mock workflow API in board-mobile and settings-mobile tests

InlineCreateCard now renders WorkflowSelector and SettingsModal renders
ProjectDefaultWorkflowField → WorkflowSelector, both of which call
fetchWorkflows / fetchProjectDefaultWorkflow on mount. These two tests mock
"../../api" with a fixed object that omitted those exports, so the components
threw "No fetchWorkflows export is defined" during render (the failures behind
test shards 1/2; masked earlier by the build break). Add the workflow API
mocks, matching the set already present in InlineCreateCard.test.tsx.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

packages/dashboard/app/components/__tests__/board-mobile.test.tsx

@@ -26,6 +26,11 @@ vi.mock("../../api", () => ({
   } satisfies Partial<Settings>),
   updateGlobalSettings: vi.fn(),
   fetchAgents: vi.fn().mockResolvedValue([]),
+  // InlineCreateCard renders WorkflowSelector, which loads these on mount.
+  fetchWorkflows: vi.fn().mockResolvedValue([]),
+  fetchProjectDefaultWorkflow: vi.fn().mockResolvedValue({ workflowId: null }),
+  setProjectDefaultWorkflow: vi.fn().mockResolvedValue({ workflowId: null }),
+  selectTaskWorkflow: vi.fn().mockResolvedValue({ workflowId: null, enabledWorkflowSteps: [] }),
 }));
 
 vi.mock("../../hooks/useBadgeWebSocket", () => ({

packages/dashboard/app/components/__tests__/settings-mobile.test.tsx

@@ -107,6 +107,10 @@ vi.mock("../../api", () => ({
     qmdInstallCommand: "bun install -g @tobilu/qmd",
   })),
   fetchDashboardHealth: vi.fn(() => Promise.resolve({ status: "ok", version: "1.2.3", uptime: 120 })),
+  // SettingsModal renders ProjectDefaultWorkflowField → WorkflowSelector, which loads these on mount.
+  fetchWorkflows: vi.fn(() => Promise.resolve([])),
+  fetchProjectDefaultWorkflow: vi.fn(() => Promise.resolve({ workflowId: null })),
+  setProjectDefaultWorkflow: vi.fn(() => Promise.resolve({ workflowId: null })),
 }));
 
 vi.mock("../../hooks/useMemoryBackendStatus", () => ({