✨feature: First push to git

tests/config.test.ts

@@ -0,0 +1,27 @@
+import { describe, expect, it } from 'vitest';
+import { validateDateFilters } from '../src/cli/flags.js';
+import { loadConfigFromString } from '../src/config/config.js';
+
+describe('config validation', () => {
+  it('loads a valid YAML config with defaults', () => {
+    const config = loadConfigFromString(`
+gmail:
+  folder: Newsletters
+output:
+  name: Newsletter Link Catalog
+  excel:
+    enabled: true
+    path: ./output/catalog.xlsx
+`);
+
+    expect(config.gmail.folder).toBe('Newsletters');
+    expect(config.links.trackingParams).toContain('utm_*');
+    expect(config.enrichment.concurrency).toBe(3);
+  });
+
+  it('rejects conflicting relative and absolute date filters', () => {
+    expect(() => validateDateFilters({ last: '30d', from: '2026-01-01' })).toThrow(
+      /cannot be combined/i
+    );
+  });
+});