chore: establish YCode replication baseline and TODO

scripts/e2e-send.mjs

@@ -0,0 +1,105 @@
+/**
+ * 端到端验证：通过 UI 发送一条消息，等待回复，报告结果。
+ *
+ * 用法：node scripts/e2e-send.mjs <port> <消息> [超时秒]
+ */
+
+const port = Number(process.argv[2] ?? 9335)
+const message = process.argv[3] ?? '列出工作目录里有哪些文件'
+const timeoutMs = Number(process.argv[4] ?? 180) * 1000
+
+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}`)), 25000)
+      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 evaluate = (expression) => send('Runtime.evaluate', { expression, returnByValue: true })
+
+  // 1) 填入消息（React 受控组件需用原生 setter）
+  const fill = `(() => {
+    const el = document.querySelector('.composer__input');
+    if (!el) return 'NO_INPUT';
+    const setter = Object.getOwnPropertyDescriptor(window.HTMLTextAreaElement.prototype, 'value').set;
+    setter.call(el, ${JSON.stringify(message)});
+    el.dispatchEvent(new Event('input', { bubbles: true }));
+    return 'OK';
+  })()`
+  const filled = await evaluate(fill)
+  console.log('填入:', filled.result.value)
+
+  // 2) 点击发送
+  const click = `(() => {
+    const btn = document.querySelector('.btn-send');
+    if (!btn) return 'NO_BUTTON';
+    if (btn.disabled) return 'DISABLED';
+    btn.click();
+    return 'SENT';
+  })()`
+  const clicked = await evaluate(click)
+  console.log('发送:', clicked.result.value)
+  if (clicked.result.value !== 'SENT') {
+    ws.close()
+    process.exit(1)
+  }
+
+  // 3) 轮询等待回复完成
+  const started = Date.now()
+  let last = ''
+  while (Date.now() - started < timeoutMs) {
+    await new Promise((r) => setTimeout(r, 1200))
+    const probe = await evaluate(`(() => {
+      const msgs = [...document.querySelectorAll('.msg--assistant')];
+      const lastMsg = msgs[msgs.length - 1];
+      const status = lastMsg ? lastMsg.querySelector('.msg__status')?.textContent ?? '' : '';
+      return JSON.stringify({
+        count: msgs.length,
+        content: lastMsg ? lastMsg.querySelector('.msg__content')?.textContent.slice(0, 400) : '',
+        status
+      });
+    })()`)
+    const state = JSON.parse(probe.result.value)
+    last = state.content
+    if (state.status && /已完成|失败|已取消|error|done/i.test(state.status)) {
+      console.log('状态:', state.status)
+      console.log('回复:', state.content)
+      ws.close()
+      return
+    }
+  }
+  console.log('超时，最后内容：', last)
+  ws.close()
+}
+
+main().catch((e) => {
+  console.error('失败：', e.message)
+  process.exit(1)
+})