init: AI-webUI-V1 first backup

2026-02-15 23:08:47 +08:00
commit f372004545
9 changed files with 1882 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,54 @@
+# dependencies
+node_modules/
+.pnpm-store/
+.yarn/
+.yarn-cache/
+.pnp.*
+.pnp.js
+
+# build output
+dist/
+build/
+out/
+.next/
+.nuxt/
+.svelte-kit/
+.vite/
+.cache/
+.parcel-cache/
+.eslintcache
+
+# logs
+logs/
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+# env
+.env
+.env.*
+!.env.example
+
+# OS / Editor
+.DS_Store
+Thumbs.db
+.vscode/
+!.vscode/extensions.json
+!.vscode/settings.json
+!.vscode/launch.json
+.idea/
+
+# temp
+tmp/
+temp/
+*.tmp
+*.swp
+
+# coverage
+coverage/
+.nyc_output/
+
+# if using docker
+**/.docker/
--- a/package-lock.json
+++ b/package-lock.json
@@ -0,0 +1,968 @@
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+        "escape-html": "^1.0.3",
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+        "send": "^1.2.0"
+      },
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+      },
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+        "url": "https://opencollective.com/express"
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+    },
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+        "object-inspect": "^1.13.3",
+        "side-channel-list": "^1.0.0",
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+        "side-channel-weakmap": "^1.0.2"
+      },
+      "engines": {
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+      "funding": {
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+      }
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+        "url": "https://github.com/sponsors/ljharb"
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+      "dependencies": {
+        "content-type": "^1.0.5",
+        "media-typer": "^1.1.0",
+        "mime-types": "^3.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
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+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/vary": {
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+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
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+    }
+  }
+}
--- a/package.json
+++ b/package.json
@@ -0,0 +1,23 @@
+{
+  "name": "ds-webui",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "start": "node server.js"
+
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "cookie-parser": "^1.4.7",
+    "dotenv": "^17.3.1",
+    "express": "^5.2.1",
+    "express-rate-limit": "^8.2.1",
+    "helmet": "^8.1.0",
+    "highlight.js": "^11.9.0",
+    "jsonwebtoken": "^9.0.3",
+    "marked": "^4.3.0"
+  }
+}
--- a/public/app.js
+++ b/public/app.js
@@ -0,0 +1,355 @@
+const messagesEl = document.getElementById("messages");
+const inputEl = document.getElementById("input");
+const sendBtn = document.getElementById("sendBtn");
+const newChatBtn = document.getElementById("newChatBtn");
+const chatListEl = document.getElementById("chatList");
+const clearBtn = document.getElementById("clearBtn");
+
+const sidebarToggleBtn = document.getElementById("sidebarToggle");
+const appRootEl = document.querySelector(".app");
+
+let chats = JSON.parse(localStorage.getItem("ds_chats") || "{}");
+let currentChatId = localStorage.getItem("ds_current_chat");
+let sidebarHidden = localStorage.getItem("ds_sidebar_hidden") === "1";
+
+/** ---------- 时间格式化 ---------- */
+function formatChatDate(ts) {
+  try {
+    return new Intl.DateTimeFormat("zh-CN", {
+      year: "numeric",
+      month: "2-digit",
+      day: "2-digit",
+    }).format(new Date(ts));
+  } catch {
+    const d = new Date(ts);
+    const y = d.getFullYear();
+    const m = String(d.getMonth() + 1).padStart(2, "0");
+    const day = String(d.getDate()).padStart(2, "0");
+    return `${y}-${m}-${day}`;
+  }
+}
+
+function formatMsgDateTime(ts) {
+  try {
+    return new Intl.DateTimeFormat("zh-CN", {
+      year: "numeric",
+      month: "2-digit",
+      day: "2-digit",
+      hour: "2-digit",
+      minute: "2-digit",
+      second: "2-digit",
+    }).format(new Date(ts));
+  } catch {
+    const d = new Date(ts);
+    const y = d.getFullYear();
+    const m = String(d.getMonth() + 1).padStart(2, "0");
+    const day = String(d.getDate()).padStart(2, "0");
+    const hh = String(d.getHours()).padStart(2, "0");
+    const mm = String(d.getMinutes()).padStart(2, "0");
+    const ss = String(d.getSeconds()).padStart(2, "0");
+    return `${y}-${m}-${day} ${hh}:${mm}:${ss}`;
+  }
+}
+
+/** ---------- 兼容旧数据：补齐 createdAt/updatedAt/ts ---------- */
+function normalizeData() {
+  const now = Date.now();
+  for (const id of Object.keys(chats)) {
+    const chat = chats[id] || {};
+    if (!chat.title) chat.title = "New Chat";
+    if (!Array.isArray(chat.messages)) chat.messages = [];
+
+    if (!chat.createdAt) {
+      const first = chat.messages[0];
+      chat.createdAt = first?.ts || now;
+    }
+    if (!chat.updatedAt) {
+      const last = chat.messages[chat.messages.length - 1];
+      chat.updatedAt = last?.ts || chat.createdAt;
+    }
+
+    for (const m of chat.messages) {
+      if (!m.ts) m.ts = chat.createdAt;
+    }
+
+    chats[id] = chat;
+  }
+}
+normalizeData();
+
+/** ---------- 保存 ---------- */
+function save() {
+  localStorage.setItem("ds_chats", JSON.stringify(chats));
+  localStorage.setItem("ds_current_chat", currentChatId || "");
+  localStorage.setItem("ds_sidebar_hidden", sidebarHidden ? "1" : "0");
+}
+
+/** ---------- 侧栏显示/隐藏 ---------- */
+function applySidebarState() {
+  if (!appRootEl) return;
+  appRootEl.classList.toggle("sidebar-hidden", sidebarHidden);
+}
+applySidebarState();
+
+if (sidebarToggleBtn) {
+  sidebarToggleBtn.onclick = () => {
+    sidebarHidden = !sidebarHidden;
+    applySidebarState();
+    save();
+  };
+}
+
+/** ---------- Chat 操作 ---------- */
+function newChat() {
+  const now = Date.now();
+  currentChatId = crypto.randomUUID();
+  chats[currentChatId] = {
+    title: "New Chat",
+    createdAt: now,
+    updatedAt: now,
+    messages: [],
+  };
+  save();
+  renderChatList();
+  renderMessages();
+}
+
+function deleteChat(id) {
+  if (!id || !chats[id]) return;
+
+  const title = chats[id].title || "This chat";
+  const ok = confirm(`Delete "${title}" ?`);
+  if (!ok) return;
+
+  delete chats[id];
+
+  // ✅ 关键：允许删除最后一个。删完后不自动 newChat()
+  if (currentChatId === id) {
+    const remainingIds = Object.keys(chats);
+    currentChatId = remainingIds[0] || null;
+  }
+
+  save();
+  renderChatList();
+  renderMessages();
+}
+
+/** ---------- 渲染左侧列表（显示创建日期 + 删除按钮 + 按更新时间排序）---------- */
+function renderChatList() {
+  chatListEl.innerHTML = "";
+
+  const entries = Object.entries(chats);
+  entries.sort((a, b) => (b[1].updatedAt || 0) - (a[1].updatedAt || 0));
+
+  // 如果没有任何 chat，列表保持空（不用提示，提示放在右侧 messages）
+  if (entries.length === 0) return;
+
+  for (const [id, chat] of entries) {
+    const li = document.createElement("li");
+    li.className = "chat-item";
+    if (id === currentChatId) li.classList.add("active");
+
+    const left = document.createElement("div");
+    left.className = "chat-item-left";
+
+    const title = document.createElement("div");
+    title.className = "chat-title";
+    title.textContent = chat.title || "New Chat";
+
+    const date = document.createElement("div");
+    date.className = "chat-date";
+    date.textContent = formatChatDate(chat.createdAt || Date.now());
+
+    left.appendChild(title);
+    left.appendChild(date);
+
+    const del = document.createElement("button");
+    del.className = "chat-del";
+    del.type = "button";
+    del.title = "Delete";
+    del.textContent = "🗑";
+    del.onclick = (e) => {
+      e.stopPropagation();
+      deleteChat(id);
+    };
+
+    li.appendChild(left);
+    li.appendChild(del);
+
+    li.onclick = () => {
+      currentChatId = id;
+      save();
+      renderChatList();
+      renderMessages();
+    };
+
+    chatListEl.appendChild(li);
+  }
+}
+
+/** ---------- 空状态 UI ---------- */
+function renderEmptyState(kind) {
+  // kind: "no-chat" | "no-messages"
+  const div = document.createElement("div");
+  div.className = "empty-state";
+
+  if (kind === "no-chat") {
+    div.innerHTML = `
+      <h3>还没有会话</h3>
+      <div>你可以：</div>
+      <ul>
+        <li>点击左上角 <code>＋</code> 创建新会话</li>
+        <li>或者直接在下方输入内容并发送（会自动创建新会话）</li>
+        <li>需要隐藏左侧列表：点顶部 <code>☰</code></li>
+      </ul>
+    `;
+  } else {
+    div.innerHTML = `
+      <h3>这个会话还没有消息</h3>
+      <div>在下方输入内容，按 <code>Enter</code> 发送；<code>Shift+Enter</code> 换行。</div>
+    `;
+  }
+
+  messagesEl.appendChild(div);
+}
+
+/** ---------- 渲染消息（每条消息显示日期时间）---------- */
+function renderMessages() {
+  messagesEl.innerHTML = "";
+
+  // 没有任何 chat
+  if (!currentChatId || !chats[currentChatId]) {
+    renderEmptyState("no-chat");
+    return;
+  }
+
+  const chat = chats[currentChatId];
+  const msgs = chat.messages || [];
+
+  // 有 chat 但没消息
+  if (msgs.length === 0) {
+    renderEmptyState("no-messages");
+    return;
+  }
+
+  for (const m of msgs) {
+    const wrap = document.createElement("div");
+    wrap.className = `message ${m.role} ${m.thinking ? "thinking" : ""}`;
+
+    const content = document.createElement("div");
+    content.className = "msg-content";
+
+    if (m.role === "assistant" && !m.thinking) {
+      content.innerHTML = marked.parse(m.content || "");
+      content.querySelectorAll("pre code").forEach((block) => {
+        if (window.hljs) window.hljs.highlightElement(block);
+      });
+    } else {
+      content.textContent = m.content || "";
+    }
+
+    const meta = document.createElement("div");
+    meta.className = "msg-meta";
+    meta.textContent = formatMsgDateTime(m.ts || Date.now());
+
+    wrap.appendChild(content);
+    wrap.appendChild(meta);
+
+    messagesEl.appendChild(wrap);
+  }
+
+  messagesEl.scrollTop = messagesEl.scrollHeight;
+}
+
+/** ---------- 发送消息 ---------- */
+sendBtn.onclick = async () => {
+  const text = inputEl.value.trim();
+  if (!text) return;
+
+  sendBtn.disabled = true;
+  sendBtn.textContent = "Sending...";
+
+  // ✅ 如果你把最后一个 chat 删光了：这里会自动新建
+  if (!currentChatId || !chats[currentChatId]) {
+    newChat();
+  }
+  const chat = chats[currentChatId];
+
+  const now = Date.now();
+
+  // user 消息带时间戳
+  chat.messages.push({ role: "user", content: text, ts: now });
+  chat.updatedAt = now;
+  inputEl.value = "";
+
+  // thinking 消息也带时间戳（后续只改内容/ts）
+  const thinkingMsg = { role: "assistant", content: "🤔 思考中…", thinking: true, ts: Date.now() };
+  chat.messages.push(thinkingMsg);
+  chat.updatedAt = thinkingMsg.ts;
+
+  renderMessages();
+  save();
+
+  try {
+    const res = await fetch("/api/chat", {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({
+        model: document.getElementById("modelSelect").value || "deepseek-chat",
+        messages: chat.messages.filter((m) => !m.thinking),
+        temperature: parseFloat(document.getElementById("tempInput").value || 0.7),
+      }),
+    });
+
+    if (!res.ok) throw new Error(`HTTP ${res.status}`);
+
+    const data = await res.json();
+
+    thinkingMsg.thinking = false;
+    thinkingMsg.content = data.reply || "No response";
+    thinkingMsg.ts = Date.now(); // ✅ 用“收到回复的时间”
+    chat.updatedAt = thinkingMsg.ts;
+
+    if (chat.title === "New Chat") {
+      chat.title = text.slice(0, 20);
+    }
+  } catch (e) {
+    thinkingMsg.thinking = false;
+    thinkingMsg.content = "❌ 请求失败";
+    thinkingMsg.ts = Date.now();
+    chat.updatedAt = thinkingMsg.ts;
+    console.error(e);
+  } finally {
+    sendBtn.disabled = false;
+    sendBtn.textContent = "Send";
+  }
+
+  save();
+  renderChatList();
+  renderMessages();
+};
+
+/** Enter=send, Shift+Enter=newline */
+inputEl.addEventListener("keydown", (e) => {
+  if (e.key === "Enter" && !e.shiftKey) {
+    e.preventDefault();
+    sendBtn.click();
+  }
+});
+
+newChatBtn.onclick = newChat;
+
+clearBtn.onclick = () => {
+  if (!currentChatId || !chats[currentChatId]) return;
+  const chat = chats[currentChatId];
+  chat.messages = [];
+  chat.title = "New Chat";
+  chat.updatedAt = Date.now();
+  save();
+  renderChatList();
+  renderMessages();
+};
+
+/** ---------- 初始化 ---------- */
+renderChatList();
+renderMessages();
--- a/public/index.html
+++ b/public/index.html
@@ -0,0 +1,152 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+  <meta charset="UTF-8" />
+  <meta name="viewport" content="width=device-width,initial-scale=1" />
+  <title>My DeepSeek WebUI</title>
+
+  <!-- Local vendor (CSP-friendly) -->
+  <link rel="stylesheet" href="/vendor/github.min.css">
+  <link rel="stylesheet" href="/style.css">
+
+  <!-- ✅ 新增：只在这里补一点点样式（避免你还要改第三个文件） -->
+  <style>
+    /* 顶部栏的图标按钮 */
+    .icon-btn{
+      border: none;
+      background: transparent;
+      cursor: pointer;
+      font-size: 18px;
+      padding: 6px 10px;
+      border-radius: 8px;
+      line-height: 1;
+    }
+    .icon-btn:hover{
+      background: rgba(0,0,0,0.06);
+    }
+
+    /* 隐藏侧栏：通过 .app.sidebar-hidden 控制 */
+    .app.sidebar-hidden .sidebar{
+      width: 0;
+      min-width: 0;
+      overflow: hidden;
+      border-right: none;
+    }
+
+    /* 左侧 chat item：标题+日期+删除按钮 */
+    #chatList li.chat-item {
+      display: flex;
+      align-items: center;
+      justify-content: space-between;
+      gap: 10px;
+    }
+    .chat-item-left {
+      display: flex;
+      flex-direction: column;
+      gap: 2px;
+      min-width: 0;
+    }
+    .chat-title {
+      font-size: 14px;
+      white-space: nowrap;
+      overflow: hidden;
+      text-overflow: ellipsis;
+    }
+    .chat-date {
+      font-size: 12px;
+      color: rgba(255, 255, 255, 0.65);
+    }
+    .chat-del {
+      background: transparent;
+      border: none;
+      color: rgba(255, 255, 255, 0.75);
+      cursor: pointer;
+      padding: 4px 6px;
+      border-radius: 6px;
+    }
+    .chat-del:hover {
+      background: rgba(255, 255, 255, 0.12);
+      color: #fff;
+    }
+
+    /* 消息时间戳 */
+    .message .msg-meta {
+      margin-top: 6px;
+      font-size: 12px;
+      opacity: 0.65;
+    }
+    .message.user .msg-meta {
+      text-align: right;
+    }
+
+    /* 空状态提示 */
+    .empty-state{
+      margin: 24px auto;
+      max-width: 720px;
+      padding: 18px 16px;
+      border-radius: 12px;
+      background: rgba(0,0,0,0.04);
+      color: rgba(0,0,0,0.72);
+      font-size: 14px;
+      line-height: 1.6;
+    }
+    .empty-state h3{
+      margin: 0 0 8px 0;
+      font-size: 16px;
+      color: rgba(0,0,0,0.85);
+    }
+    .empty-state code{
+      background: rgba(0,0,0,0.06);
+      padding: 2px 6px;
+      border-radius: 6px;
+    }
+  </style>
+</head>
+<body>
+
+<div class="app">
+
+  <aside class="sidebar">
+    <div class="sidebar-header">
+      <h2>Chats</h2>
+      <button id="newChatBtn" type="button">＋</button>
+    </div>
+    <ul id="chatList"></ul>
+  </aside>
+
+  <main class="main">
+    <header class="topbar">
+      <div class="topbar-left">
+        <!-- ✅ 新增：隐藏/展开侧栏按钮 -->
+        <button id="sidebarToggle" type="button" class="icon-btn" title="Toggle sidebar">☰</button>
+
+        <label>Model:</label>
+        <select id="modelSelect">
+          <option value="deepseek-chat">deepseek-chat</option>
+          <option value="deepseek-reasoner">deepseek-reasoner</option>
+        </select>
+
+        <label>Temp:</label>
+        <input id="tempInput" type="number" step="0.1" value="0.7" />
+      </div>
+
+      <button id="clearBtn" type="button">Clear</button>
+    </header>
+
+    <section id="messages" class="messages"></section>
+
+    <footer class="inputbar">
+      <textarea id="input" placeholder="Type your message... (Enter=send, Shift+Enter=newline)"></textarea>
+      <button id="sendBtn" type="button">Send</button>
+    </footer>
+  </main>
+
+</div>
+
+<!-- Local vendor (CSP-friendly) -->
+<script src="/vendor/marked.min.js"></script>
+<script src="/vendor/highlight.js"></script>
+<script src="/app.js"></script>
+
+</body>
+</html>
--- a/public/style.css
+++ b/public/style.css
@@ -0,0 +1,247 @@
+* {
+  box-sizing: border-box;
+}
+
+body {
+  margin: 0;
+  font-family: system-ui, -apple-system, BlinkMacSystemFont;
+  background: #f7f7f8;
+}
+
+.app {
+  display: flex;
+  height: 100vh;
+}
+
+/* Sidebar */
+.sidebar {
+  width: 260px;
+  background: #202123;
+  color: #fff;
+  display: flex;
+  flex-direction: column;
+}
+
+.sidebar-header {
+  padding: 12px;
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+}
+
+.sidebar-header button {
+  background: #444;
+  color: #fff;
+  border: none;
+  border-radius: 6px;
+  padding: 4px 8px;
+  cursor: pointer;
+}
+
+#chatList {
+  list-style: none;
+  padding: 0;
+  margin: 0;
+  overflow-y: auto;
+}
+
+#chatList li {
+  padding: 10px 12px;
+  cursor: pointer;
+  border-bottom: 1px solid #333;
+}
+
+#chatList li.active {
+  background: #343541;
+}
+
+/* Main */
+.main {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+}
+
+.topbar {
+  padding: 10px;
+  background: #fff;
+  border-bottom: 1px solid #ddd;
+  display: flex;
+  justify-content: space-between;
+}
+
+.messages {
+  flex: 1;
+  padding: 20px;
+  overflow-y: auto;
+
+  display: flex;
+  flex-direction: column;
+  gap: 14px;
+}
+
+
+.message {
+  margin-bottom: 16px;
+  max-width: 800px;
+}
+
+.message {
+  max-width: 78%;
+  padding: 12px 14px;
+  border-radius: 16px;
+  line-height: 1.6;
+  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
+}
+
+.message.user {
+  align-self: flex-end;
+  background: linear-gradient(135deg, #6fa8ff, #000000);
+  color: #03173e;
+}
+
+.message.assistant {
+  align-self: flex-start;
+  background: #fff;
+  border: 1px solid #eee;
+}
+
+
+.message.user {
+  align-self: flex-end;
+  background: #daf1ff;
+  padding: 12px;
+  border-radius: 12px;
+}
+
+.message.assistant {
+  background: #fff;
+  padding: 12px;
+  border-radius: 12px;
+  border: 1px solid #eee;
+}
+
+.message.thinking {
+  color: #888;
+  font-style: italic;
+}
+
+.inputbar {
+  padding: 12px;
+  display: flex;
+  gap: 10px;
+  border-top: 1px solid #ddd;
+  background: #fff;
+}
+
+textarea {
+  flex: 1;
+  resize: none;
+  padding: 12px 14px;
+  border-radius: 14px;
+  border: 1px solid #ddd;
+  min-height: 48px;
+  max-height: 180px;
+  outline: none;
+}
+
+textarea:focus {
+  border-color: #4a90e2;
+  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.15);
+}
+
+#sendBtn {
+  min-width: 88px;
+  border-radius: 14px;
+}
+
+
+.topbar-left {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+}
+
+.topbar select,
+.topbar input {
+  height: 34px;
+  border-radius: 10px;
+  border: 1px solid #ddd;
+  padding: 0 10px;
+}
+
+.topbar label {
+  color: #555;
+  font-size: 14px;
+}
+
+
+textarea {
+  flex: 1;
+  resize: none;
+  padding: 10px;
+  border-radius: 8px;
+  border: 1px solid #ccc;
+}
+
+button {
+  padding: 8px 14px;
+  border-radius: 8px;
+  border: none;
+  background: #10a37f;
+  color: white;
+  cursor: pointer;
+}
+
+/* 左侧 chat item：标题+日期+删除按钮 */
+#chatList li.chat-item {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 10px;
+}
+
+.chat-item-left {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+  min-width: 0;
+}
+
+.chat-title {
+  font-size: 14px;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.chat-date {
+  font-size: 12px;
+  color: rgba(255, 255, 255, 0.65);
+}
+
+.chat-del {
+  background: transparent;
+  border: none;
+  color: rgba(255, 255, 255, 0.75);
+  cursor: pointer;
+  padding: 4px 6px;
+  border-radius: 6px;
+}
+
+.chat-del:hover {
+  background: rgba(255, 255, 255, 0.12);
+  color: #fff;
+}
+
+/* 消息：内容 + 时间戳 */
+.message .msg-meta {
+  margin-top: 6px;
+  font-size: 12px;
+  opacity: 0.65;
+}
+
+/* 让 user 的时间戳靠右一点更像聊天软件 */
+.message.user .msg-meta {
+  text-align: right;
+}
--- a/public/vendor/github.min.css
+++ b/public/vendor/github.min.css
@@ -0,0 +1,7 @@
+pre code.hljs{display:block;overflow-x:auto;padding:1em}code.hljs{padding:3px 5px}/*!
+  Theme: a11y-dark
+  Author: @ericwbailey
+  Maintainer: @ericwbailey
+
+  Based on the Tomorrow Night Eighties theme: https://github.com/isagalaev/highlight.js/blob/master/src/styles/tomorrow-night-eighties.css
+*/.hljs{background:#2b2b2b;color:#f8f8f2}.hljs-comment,.hljs-quote{color:#d4d0ab}.hljs-deletion,.hljs-name,.hljs-regexp,.hljs-selector-class,.hljs-selector-id,.hljs-tag,.hljs-template-variable,.hljs-variable{color:#ffa07a}.hljs-built_in,.hljs-link,.hljs-literal,.hljs-meta,.hljs-number,.hljs-params,.hljs-type{color:#f5ab35}.hljs-attribute{color:gold}.hljs-addition,.hljs-bullet,.hljs-string,.hljs-symbol{color:#abe338}.hljs-section,.hljs-title{color:#00e0e0}.hljs-keyword,.hljs-selector-tag{color:#dcc6e0}.hljs-emphasis{font-style:italic}.hljs-strong{font-weight:700}@media screen and (-ms-high-contrast:active){.hljs-addition,.hljs-attribute,.hljs-built_in,.hljs-bullet,.hljs-comment,.hljs-link,.hljs-literal,.hljs-meta,.hljs-number,.hljs-params,.hljs-quote,.hljs-string,.hljs-symbol,.hljs-type{color:highlight}.hljs-keyword,.hljs-selector-tag{font-weight:700}}
--- a/public/vendor/marked.min.js
+++ b/public/vendor/marked.min.js
--- a/server.js
+++ b/server.js
@@ -0,0 +1,70 @@
+require("dotenv").config();
+const express = require("express");
+const helmet = require("helmet");
+const rateLimit = require("express-rate-limit");
+
+const app = express();
+app.use(helmet());
+app.use(express.json({ limit: "1mb" }));
+app.use(express.static("public"));
+
+const DEEPSEEK_API_KEY = process.env.DEEPSEEK_API_KEY;
+const BASE_URL = process.env.DEEPSEEK_BASE_URL || "https://api.deepseek.com";
+
+if (!DEEPSEEK_API_KEY) {
+  console.error("Missing env: DEEPSEEK_API_KEY");
+  process.exit(1);
+}
+
+// 只对 API 做限流（防止被刷）
+app.use("/api/", rateLimit({
+  windowMs: 60 * 1000,
+  max: 60,
+  standardHeaders: true,
+  legacyHeaders: false,
+}));
+
+app.get("/api/health", (req, res) => {
+  res.json({ ok: true });
+});
+
+// Chat API：假设已经由 Nginx Basic Auth 保护了整个站点
+app.post("/api/chat", async (req, res) => {
+  try {
+    const { model, messages, temperature } = req.body || {};
+
+    if (!model || !Array.isArray(messages)) {
+      return res.status(400).json({ error: "model/messages required" });
+    }
+
+    const r = await fetch(`${BASE_URL}/v1/chat/completions`, {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/json",
+        Authorization: `Bearer ${DEEPSEEK_API_KEY}`,
+      },
+      body: JSON.stringify({
+        model,                 // deepseek-chat / deepseek-reasoner
+        messages,
+        temperature: typeof temperature === "number" ? temperature : 0.7,
+      }),
+    });
+
+    const data = await r.json();
+
+    if (!r.ok) {
+      // 把 DeepSeek 返回透出，方便你排障（不会暴露 API key）
+      return res.status(r.status).json(data);
+    }
+
+    const reply = data?.choices?.[0]?.message?.content ?? "";
+    return res.json({ reply });
+  } catch (e) {
+    return res.status(500).json({ error: String(e) });
+  }
+});
+
+// 只监听本机回环：外网只能走 Nginx（更安全）
+app.listen(3000, "127.0.0.1", () => {
+  console.log("DS WebUI listening on 127.0.0.1:3000");
+});