guanlan-src/app_frontEnd/web/tools/_check_center.mjs

import { readFileSync } from 'node:fs'
import { fileURLToPath, pathToFileURL } from 'node:url'
import { dirname, resolve } from 'node:path'
import { JSDOM, VirtualConsole } from 'jsdom'
const HERE = dirname(fileURLToPath(import.meta.url))
const GATEWAY = process.argv[2]
const dist = resolve(HERE, '../../../release/web')
const idx = readFileSync(dist + '/index.html', 'utf8')
const jsFile = (idx.match(/src="\.\/assets\/([^"]+\.js)"/) || [])[1]
const cssFile = (idx.match(/href="\.\/assets\/([^"]+\.css)"/) || [])[1]
const code = readFileSync(dist + '/assets/' + jsFile, 'utf8')
const css = readFileSync(dist + '/assets/' + cssFile, 'utf8')
const dom = new JSDOM(idx.replace('</head>', '<style>' + css + '</style></head>'),
  { url: GATEWAY + '/web/index.html#workbench', runScripts: 'outside-only', pretendToBeVisual: true, virtualConsole: new VirtualConsole() })
const w = dom.window
w.fetch = async () => ({ ok: true, status: 200, json: async () => ({ win: '2026年', tabs: {} }), text: async () => '{}' })
try { w.eval(code) } catch (e) { console.log('EVAL_ERR ' + String(e).slice(0, 140)) }
await new Promise((r) => setTimeout(r, 1200))
const d = w.document
function probe(sel) {
  const el = d.querySelector(sel)
  if (!el) return sel + ' = 缺失'
  const cs = w.getComputedStyle(el)
  return sel + ' → max-width=' + (cs.maxWidth || '-') + ' marginLeft=' + (cs.marginLeft || '-')
       + ' marginRight=' + (cs.marginRight || '-') + ' padding=' + (cs.padding || '-') + ' width=' + (cs.width || '-')
}
for (const s of ['body', '#app', '.wrap', 'main#root', 'header.top', 'nav.tabs', 'footer#foot']) console.log(probe(s))
// 是否存在把 .wrap 关掉的规则（旧 CSS 里有一条 .wrap{padding:0;max-width:none} 在媒体查询里）
const m = css.match(/\.wrap\s*\{[^}]*max-width:none[^}]*\}/g)
console.log('CSS_WRAP_OVERRIDE ' + (m ? JSON.stringify(m).slice(0, 200) : 'none'))
const mq = css.match(/@media[^{]*\{[^@]*\.wrap\s*\{[^}]*\}/)
console.log('CSS_WRAP_IN_MEDIA ' + (mq ? mq[0].slice(0, 220).replace(/\s+/g, ' ') : 'none'))