chore: establish YCode replication baseline and TODO

scripts/verify-tokens.mjs

@@ -0,0 +1,90 @@
+/**
+ * 运行时校验：字号档位、token 生效情况、面板宽度。
+ * 用法：node scripts/verify-tokens.mjs <port> <outPng>
+ */
+
+import { writeFile } from 'node:fs/promises'
+
+const port = Number(process.argv[2] ?? 9335)
+const outPng = process.argv[3] ?? null
+
+async function main() {
+  const list = await (await fetch(`http://127.0.0.1:${port}/json/list`)).json()
+  const page = list.filter((t) => t.type === 'page')[0]
+  if (!page) throw new Error('未找到页面')
+
+  const ws = new WebSocket(page.webSocketDebuggerUrl)
+  await new Promise((r, j) => {
+    const t = setTimeout(() => j(new Error('连接超时')), 8000)
+    ws.addEventListener('open', () => {
+      clearTimeout(t)
+      r()
+    })
+    ws.addEventListener('error', () => {
+      clearTimeout(t)
+      j(new Error('连接失败'))
+    })
+  })
+
+  const send = (method, params = {}) =>
+    new Promise((res, rej) => {
+      const id = Math.floor(Math.random() * 1e9)
+      const timer = setTimeout(() => rej(new Error(`超时 ${method}`)), 15000)
+      const h = (ev) => {
+        const m = JSON.parse(ev.data)
+        if (m.id === id) {
+          clearTimeout(timer)
+          ws.removeEventListener('message', h)
+          res(m.result)
+        }
+      }
+      ws.addEventListener('message', h)
+      ws.send(JSON.stringify({ id, method, params }))
+    })
+
+  const expr = `(() => {
+    const cs = getComputedStyle(document.documentElement);
+    const read = (n) => cs.getPropertyValue(n).trim();
+    const body = getComputedStyle(document.body);
+    const out = {
+      level: document.documentElement.dataset.fontLevel,
+      mdRoot: read('--yc-md-root'),
+      offset: read('--yc-font-offset'),
+      bodyFontSize: body.fontSize,
+      bodyLineHeight: body.lineHeight,
+      shellColumns: getComputedStyle(document.querySelector('.app-shell')).gridTemplateColumns,
+      titlebarHeight: getComputedStyle(document.querySelector('.titlebar')).height,
+      sidebarWidth: getComputedStyle(document.querySelector('.sidebar')).width,
+      inputMaxWidth: read('--yc-input-max'),
+      contentMax: read('--yc-content-max')
+    };
+    // 逐档采样
+    const samples = {};
+    for (const lv of [1,2,3,4,5,6]) {
+      document.documentElement.style.setProperty('--yc-font-offset-global', String([-1,0,1,2,2,2][lv-1]));
+      document.documentElement.style.setProperty('--yc-md-root', ['16px','17.143px','18.286px','20.571px','22.857px','26.286px'][lv-1]);
+      const c = getComputedStyle(document.body);
+      samples[lv] = { body: c.fontSize, line: c.lineHeight };
+    }
+    out.samples = samples;
+    return JSON.stringify(out);
+  })()`
+
+  const r = await send('Runtime.evaluate', { expression: expr, returnByValue: true })
+  const data = JSON.parse(r.result.value)
+  console.log(JSON.stringify(data, null, 2))
+
+  if (outPng) {
+    const shot = await send('Page.captureScreenshot', { format: 'png' })
+    if (shot?.data) {
+      await writeFile(outPng, Buffer.from(shot.data, 'base64'))
+      console.log('截图:', outPng)
+    }
+  }
+  ws.close()
+}
+
+main().catch((e) => {
+  console.error('失败：', e.message)
+  process.exit(1)
+})