fix(ci): repair dashboard tests broken by cli-agent feature

- TaskFieldsSection.css: restore the toggle knob fill to the themed
  var(--card) token (was hardcoded to #fff on this branch), which the
  AgentListModal theme-token guard scans all app CSS for and rejects.
- ListView.test.tsx: add fetchBoardWorkflows + api to the ../../api mock;
  TaskDetailModal (rendered via the embedded detail) now calls both at mount
  for board workflows and the cli-sessions lookup, so the object-literal mock
  must provide them ("No X export is defined on the ../../api mock").
- auto-merge-toggle-blank.mobile.test.tsx / board-mobile-initial-render.test.tsx:
  revert the runOnlyPendingTimers→runAllTimers change; with the installed rAF
  shim that re-schedules itself, runAllTimers loops forever and trips vitest's
  10000-timer infinite-loop abort.

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

packages/dashboard/app/components/TaskFieldsSection.css

@@ -139,7 +139,7 @@
   width: 14px;
   height: 14px;
   border-radius: 50%;
-  background: #fff;
+  background: var(--card);
   transition: transform 0.15s ease;
 }
 

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

@@ -23,6 +23,13 @@ vi.mock("../../api", () => ({
   fetchTaskDetail: vi.fn(),
   batchUpdateTaskModels: vi.fn(),
   fetchNodes: vi.fn().mockResolvedValue([]),
+  fetchBoardWorkflows: vi.fn().mockResolvedValue({
+    flagEnabled: false,
+    defaultWorkflowId: null,
+    workflows: [],
+    taskWorkflowIds: {},
+  }),
+  api: vi.fn().mockResolvedValue({ sessions: [] }),
 }));
 
 import { fetchTaskDetail, batchUpdateTaskModels, fetchNodes } from "../../api";