chore: phase 2 and 3 refactors

tests/renderer/navigation/siteValidationPersistence.test.ts

@@ -0,0 +1,27 @@
+import { describe, expect, it } from 'vitest';
+import type { SiteValidationReport } from '../../../src/main/shared/electronApi';
+import {
+  getPersistedSiteValidationReport,
+  persistSiteValidationReport,
+} from '../../../src/renderer/navigation/siteValidationPersistence';
+
+const report: SiteValidationReport = {
+  sitemapPath: '/tmp/sitemap.xml',
+  sitemapChanged: false,
+  missingUrlPaths: ['/foo'],
+  extraUrlPaths: ['/bar'],
+  expectedUrlCount: 10,
+  existingHtmlUrlCount: 9,
+};
+
+describe('siteValidationPersistence', () => {
+  it('persists and loads site validation report by project', () => {
+    persistSiteValidationReport('project-1', report);
+
+    expect(getPersistedSiteValidationReport('project-1')).toEqual(report);
+  });
+
+  it('returns null when project has no persisted report', () => {
+    expect(getPersistedSiteValidationReport('missing-project')).toBeNull();
+  });
+});