Fix/post list excerpt rendering (#41)

* feat: use excerpts in post lists

* chore: made testing less noisy

---------

Co-authored-by: hugo <hugoms@me.com>

tests/utils/consoleCapture.test.ts

@@ -0,0 +1,17 @@
+import { describe, expect, it } from 'vitest';
+
+import { withCapturedConsole } from './consoleCapture';
+
+describe('withCapturedConsole', () => {
+  it('captures expected console output without leaking it to the test run', async () => {
+    await withCapturedConsole('error', async (captured) => {
+      const error = new Error('expected failure');
+
+      console.error('[Test]', error);
+
+      expect(captured.spy).toHaveBeenCalledWith('[Test]', error);
+      expect(captured.text()).toContain('[Test]');
+      expect(captured.text()).toContain('expected failure');
+    });
+  });
+});