PlantAI-rag-new 首次提交：文献知识工作台

- BFF 薄适配层（FastAPI，8090）：QA 代理/SSE 中继/Neo4j 直连/抽取代理/会话持久化 - Vue3 前端：五相位检索流水线、文献来源与证据链、知识图谱、提取任务四 tab - 四档响应式（桌面/笔记本/平板/手机）、深浅主题 - 81 个 FR 全部实现，测试追溯矩阵 81/81，后端 121 测/前端 156 测 - 真实凭据已脱敏，运行时配置在 backend/.env（不入 git） Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-25 20:47:52 +08:00
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+// deploy/m2_probe.js —— 诊断探针（PM 使用，在远端运行）
+// 目的：定位真实浏览器中 SSE progress 未推进流水线相位的原因
+const { chromium } = require('playwright');
+
+(async () => {
+  const browser = await chromium.launch();
+  const ctx = await browser.newContext({ viewport: { width: 1440, height: 900 } });
+  const page = await ctx.newPage();
+  const logs = [];
+  page.on('console', (m) => {
+    if (m.type() === 'error' || m.type() === 'warning') logs.push(`[${m.type()}] ${m.text().slice(0, 200)}`);
+  });
+  page.on('pageerror', (e) => logs.push('[pageerror] ' + e.message.slice(0, 200)));
+
+  await page.goto('http://127.0.0.1:5180', { waitUntil: 'domcontentloaded' });
+  await page.waitForSelector('.app-shell', { timeout: 15000 });
+  await page.click('.new-task-btn');
+  await page.waitForSelector('.composer textarea', { timeout: 15000 });
+
+  // 用「检索」模式（use_llm:false，走 /api/qa/search，更快的真实链路）排除揭示动画干扰
+  // 但 search 无 SSE——这里仍用默认问答走 SSE，只是探针只观察 60s
+  await page.fill('.composer textarea', 'SPL gene family in rice');
+  await page.click('.send-btn');
+
+  const t0 = Date.now();
+  const timeline = [];
+  let pipelineSeen = false;
+  while (Date.now() - t0 < 90000) {
+    const snap = await page.evaluate(() => {
+      const card = document.querySelector('.pipeline-card');
+      const steps = Array.from(document.querySelectorAll('.pipeline-card .p-step'));
+      const msgs = Array.from(document.querySelectorAll('.msg.assistant'));
+      const stream = document.querySelector('.stream-text')?.textContent?.length || 0;
+      const body = document.querySelector('.msg.assistant .msg-body')?.textContent?.length || 0;
+      // 检查正在进行的 fetch 到 stream 端点
+      const perf = performance.getEntriesByType('resource').filter((r) => r.name.includes('chat/stream'));
+      return {
+        card: !!card,
+        stepCount: steps.length,
+        states: steps.map((s) => (s.className.includes('done') ? 'D' : s.className.includes('running') ? 'R' : 'W')).join(''),
+        descs: steps.map((s) => s.querySelector('.p-desc')?.textContent?.slice(0, 20)).join('|'),
+        msgCount: msgs.length,
+        streamLen: stream,
+        bodyLen: body,
+        streamReqs: perf.length,
+      };
+    });
+    const key = JSON.stringify(snap);
+    if (!timeline.length || timeline[timeline.length - 1].key !== key) {
+      timeline.push({ t: Math.round((Date.now() - t0) / 1000), key });
+      console.log(`T+${Math.round((Date.now() - t0) / 1000)}s`, JSON.stringify(snap));
+    }
+    if (snap.card) pipelineSeen = true;
+    if (snap.bodyLen > 30 && snap.streamLen === 0 && snap.states.includes('D')) break;
+    if (snap.bodyLen > 50) break; // 答案已出现，看相位是否 done
+    await new Promise((r) => setTimeout(r, 2000));
+  }
+
+  console.log('\n--- 浏览器日志（error/warning）---');
+  logs.slice(0, 10).forEach((l) => console.log(l));
+  console.log('\n--- 最终 DOM 摘要 ---');
+  const fin = await page.evaluate(() => {
+    const card = document.querySelector('.pipeline-card');
+    return card ? card.outerHTML.slice(0, 1200) : '无 pipeline-card';
+  });
+  console.log(fin);
+  await browser.close();
+})();