fix(workspace): 使用本地日期生成今日日报

apps/web/lib/format.test.ts

@@ -0,0 +1,12 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import { formatLocalDate } from './format';
+
+test('formatLocalDate formats a local calendar date as YYYY-MM-DD', () => {
+  assert.equal(formatLocalDate(new Date(2026, 5, 26, 23, 59)), '2026-06-26');
+});
+
+test('formatLocalDate pads month and day', () => {
+  assert.equal(formatLocalDate(new Date(2026, 0, 2, 8, 5)), '2026-01-02');
+});