chore: directory migration - gateway→server, web→client/electron

client/electron/test/manual/wide-regression.mjs

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+/**
+ * 宽屏回归：窄屏修复不能把桌面布局改坏。
+ *
+ * 特别是两个只该在窄屏生效的东西：
+ *   - `.tap` 的伪元素命中区（桌面密排工具栏里会互相重叠）
+ *   - `BackButton`（宽屏列表与详情并排，返回没有意义）
+ *
+ * 用法：ADMIN_PW=<密码> node client/electron/test/manual/wide-regression.mjs
+ */
+import { openApp, WIDE } from './narrow-probe-helper.mjs';
+
+const { browser, page, issues } = await openApp(WIDE);
+const failed = [];
+const chk = (n, ok, note = '') => {
+  console.log(`  ${ok ? '通过' : '失败'}  ${n}${note ? ' — ' + note : ''}`);
+  if (!ok) failed.push(n);
+};
+
+console.log('宽屏回归（1280px）：');
+
+const cols = await page.evaluate(() => {
+  const root = document.querySelector('#root > div');
+  return { n: root?.children.length, first: root?.children[0]?.className?.toString().slice(0, 30) };
+});
+chk('仍是三栏并排', cols.n === 3, `栏数=${cols.n} 首栏=${cols.first}`);
+
+// 常驻侧栏是宽屏唯一的退出入口（账号页也有，两处都要在）
+const side = await page.evaluate(() => {
+  const s = document.querySelector('#root > div > div');
+  const btns = s
+    ? [...s.querySelectorAll('button')].map(b =>
+        (b.getAttribute('title') || b.textContent || '').trim().slice(0, 12)
+      )
+    : [];
+  return { w: s ? Math.round(s.getBoundingClientRect().width) : 0, btns };
+});
+chk('常驻侧栏仍有退出登录', side.btns.some(b => b.includes('退出')), `宽=${side.w}`);
+
+// 宽屏不该出现返回按钮
+// 邮件行是 <button class="w-full text-left ...">
+const rows = page.locator('button.w-full.text-left');
+if ((await rows.count()) > 0) await rows.first().click();
+await page.waitForTimeout(1000);
+const backN = await page.locator('button[aria-label="返回"], button[aria-label="会话"]').count();
+chk('没有返回按钮', backN === 0, `${backN} 个`);
+
+// .tap 只在 max-width:767px 生效
+const tapWide = await page.evaluate(() => {
+  const b = [...document.querySelectorAll('.tap')].find(x => x.getBoundingClientRect().height > 0);
+  if (!b) return null;
+  const cs = getComputedStyle(b, '::after');
+  return { content: cs.content, w: cs.width, h: cs.height };
+});
+chk(
+  '.tap 伪元素在宽屏不生效',
+  !tapWide || tapWide.content === 'none' || tapWide.w === 'auto',
+  JSON.stringify(tapWide)
+);
+
+const of = await page.evaluate(() => ({
+  d: document.documentElement.clientWidth,
+  s: document.documentElement.scrollWidth
+}));
+chk('无横向溢出', of.s <= of.d, `doc=${of.d} scroll=${of.s}`);
+
+console.log('\nissues:', issues.length ? issues : '无');
+console.log(failed.length === 0 ? '\n宽屏回归：全部通过' : `\n宽屏回归：${failed.length} 项失败`);
+
+await page.close();
+await browser.close();
+process.exit(failed.length === 0 ? 0 : 1);