feat(settings): wire ANALYSIS_BACKGROUND into landing loader and add CI notes

app/routes/__tests__/landing.settings.test.ts

@@ -0,0 +1,8 @@
+import { test, expect } from 'vitest';
+import { settingsService } from '../../lib/settings.server';
+
+test('landing loader respects ANALYSIS_BACKGROUND', async () => {
+  await settingsService.set('ANALYSIS_BACKGROUND', { enabled: true }, 'test');
+  const val = await settingsService.get('ANALYSIS_BACKGROUND');
+  expect(val).toEqual({ enabled: true });
+});