perf: optimize app startup and background lifecycles

tests/unit/works-square-session-persistence-policy.test.ts

@@ -0,0 +1,9 @@
+import { describe, expect, it } from 'vitest';
+import { shouldUseSecureWorksSquareSessionPersistence } from '@electron/services/works-square-session-persistence-policy';
+
+describe('Works Square session persistence policy', () => {
+  it('uses OS secure storage only for packaged applications', () => {
+    expect(shouldUseSecureWorksSquareSessionPersistence(true)).toBe(true);
+    expect(shouldUseSecureWorksSquareSessionPersistence(false)).toBe(false);
+  });
+});