首次提交：脑晴测 H5 项目

包含前端源码、预构建产物（dist/）、零依赖 Node.js 服务器（server.mjs）、
Cloudflare Worker 版本（worker/）、部署文档（DEPLOY.md）和交接文档。

技术总监可直接 clone 后运行 node server.mjs 启动，无需安装 React 或 build。
DEEPSEEK_API_KEY 通过环境变量注入，未纳入仓库。

brain-h5/worker/index.js

@@ -0,0 +1,52 @@
+const SYSTEM_PROMPT = `你是一名数字脑健康表现报告助手。根据用户完成游戏时产生的结构化数据，生成通俗、克制、非医疗化的中文报告。不得诊断疾病，不得推荐药物或医疗处置，不得使用“异常、受损、提示存在问题或挑战”等暗示医学结论的说法。只描述本次表现，优先使用“反应相对偏慢、注意表现有波动、容易遗漏、仍有提升空间”。只输出合法 JSON：{"summary":"80字内总结","strength":"60字内相对优势","opportunity":"60字内提升空间","recommendations":["建议1","建议2","建议3"]}`;
+
+async function analyze(request, env) {
+  if (!env.DEEPSEEK_API_KEY) return Response.json({ error: "AI service is not configured" }, { status: 503 });
+  try {
+    const assessment = await request.json();
+    const upstream = await fetch("https://api.deepseek.com/chat/completions", {
+      method: "POST",
+      headers: { "content-type": "application/json", authorization: `Bearer ${env.DEEPSEEK_API_KEY}` },
+      body: JSON.stringify({
+        model: "deepseek-chat",
+        temperature: 0.35,
+        response_format: { type: "json_object" },
+        messages: [
+          { role: "system", content: SYSTEM_PROMPT },
+          { role: "user", content: JSON.stringify({ profile: assessment.profile, metrics: assessment.metrics, eventCount: assessment.events?.length ?? 0 }) },
+        ],
+      }),
+      signal: AbortSignal.timeout(15000),
+    });
+    if (!upstream.ok) return Response.json({ error: "AI service request failed" }, { status: 502 });
+    const payload = await upstream.json();
+    const content = payload?.choices?.[0]?.message?.content;
+    const rawReport = JSON.parse(String(content || "{}").replace(/^```json\s*|\s*```$/g, ""));
+    const parsed = {
+      summary: String(rawReport.summary || "本次四项任务已经完成。"),
+      strength: String(rawReport.strength || "部分任务表现相对稳定。"),
+      opportunity: String(rawReport.opportunity || "仍有可以通过规律练习提升的空间。"),
+      recommendations: Array.isArray(rawReport.recommendations) ? rawReport.recommendations.slice(0, 3).map(String) : [],
+    };
+    return Response.json(parsed, { headers: { "cache-control": "no-store" } });
+  } catch {
+    return Response.json({ error: "AI report could not be generated" }, { status: 502 });
+  }
+}
+
+export default {
+  async fetch(request, env) {
+    const url = new URL(request.url);
+    if (url.pathname === "/api/analyze") {
+      if (request.method !== "POST") return new Response("Method not allowed", { status: 405 });
+      return analyze(request, env);
+    }
+    const response = await env.ASSETS.fetch(request);
+    const acceptsHtml = request.headers.get("accept")?.includes("text/html");
+    if (response.status !== 404 || !acceptsHtml || !["GET", "HEAD"].includes(request.method)) return response;
+    const indexUrl = new URL(request.url);
+    indexUrl.pathname = "/index.html";
+    indexUrl.search = "";
+    return env.ASSETS.fetch(new Request(indexUrl, request));
+  },
+};