简化登录页并新增记住密码

memory/2026-05-01.md

@@ -478,3 +478,26 @@
 - 风险与影响：
   - 影响范围限定在前端管理页交互层；后端接口仍保持兼容，可继续返回权限相关字段但前端不再暴露配置入口。
   - 若后续需彻底下线该能力（含后端字段/持久化），需单独评估接口契约与历史数据兼容。
+
+## Work Log - 登录页面还原最简洁样式并保留记住密码（2026-05-01）
+
+- 背景：
+  - Issue `FL-144` 要求将登录页还原为最简洁样式，保留“登录、记住密码”功能，并将标题改为“防雷计算”。
+
+- 本次改动（最小闭环）：
+  - 文件：`web/src/app/page.tsx`
+    - 去除登录页注册模式相关状态与 UI（`mode/register/username/切换按钮`），仅保留登录流程。
+    - 页面主标题改为 `防雷计算`。
+    - 视觉样式收敛为简洁白底 + 居中卡片布局，移除装饰性图标块、渐变、复杂文案。
+    - 新增“记住密码”复选框：
+      - 勾选后登录成功时将用户 ID 与密码写入 `localStorage`；
+      - 未勾选时清理本地缓存；
+      - 页面加载时若已记住则自动回填账号密码并默认勾选。
+
+- 验证：
+  - 代码路径自检：登录仍走 `useAuth().login` 既有链路，未改动鉴权接口与路由跳转逻辑。
+  - 按任务约束未执行编译/安装依赖。
+
+- 风险与影响：
+  - 影响范围：仅前端登录页 `web/src/app/page.tsx`。
+  - 风险：记住密码当前使用浏览器 `localStorage` 明文存储，存在本机安全暴露风险（符合需求但需知悉）。

web/src/app/page.tsx

@@ -1,23 +1,24 @@
 "use client";
 
-import { IdcardOutlined, LockOutlined, UserOutlined } from "@ant-design/icons";
+import { IdcardOutlined, LockOutlined } from "@ant-design/icons";
 import { ChangeEvent, FormEvent, useEffect, useState } from "react";
 import { useRouter } from "next/navigation";
-import { Alert, Button, Input, Space, Typography } from "antd";
+import { Alert, Button, Checkbox, Input, Space, Typography } from "antd";
 
 import { useAuth } from "@/components/auth-provider";
 import { Card } from "@/components/ui-antd";
 
-type Mode = "login" | "register";
+const LOGIN_REMEMBER_KEY = "login.remember";
+const LOGIN_USER_ID_KEY = "login.user_id";
+const LOGIN_PASSWORD_KEY = "login.password";
 
 export default function Home() {
   const router = useRouter();
-  const { user, initializing, login, register } = useAuth();
+  const { user, initializing, login } = useAuth();
 
-  const [mode, setMode] = useState<Mode>("login");
   const [userId, setUserId] = useState("");
-  const [username, setUsername] = useState("");
   const [password, setPassword] = useState("");
+  const [rememberPassword, setRememberPassword] = useState(false);
   const [busy, setBusy] = useState(false);
   const [error, setError] = useState("");
 
@@ -27,8 +28,20 @@ export default function Home() {
     }
   }, [initializing, router, user]);
 
-  const formTitle = mode === "login" ? "登录你的工作台" : "创建你的工作台";
-  const submitLabel = mode === "login" ? "登录" : "创建账号";
+  useEffect(() => {
+    if (typeof window === "undefined") {
+      return;
+    }
+
+    const remembered = window.localStorage.getItem(LOGIN_REMEMBER_KEY) === "1";
+    if (!remembered) {
+      return;
+    }
+
+    setRememberPassword(true);
+    setUserId(window.localStorage.getItem(LOGIN_USER_ID_KEY) ?? "");
+    setPassword(window.localStorage.getItem(LOGIN_PASSWORD_KEY) ?? "");
+  }, []);
 
   const handleSubmit = async (event: FormEvent<HTMLFormElement>) => {
     event.preventDefault();
@@ -36,11 +49,21 @@ export default function Home() {
     setBusy(true);
 
     try {
-      if (mode === "login") {
-        await login(userId.trim(), password);
+      const normalizedUserId = userId.trim();
+      await login(normalizedUserId, password);
+
+      if (typeof window !== "undefined") {
+        if (rememberPassword) {
+          window.localStorage.setItem(LOGIN_REMEMBER_KEY, "1");
+          window.localStorage.setItem(LOGIN_USER_ID_KEY, normalizedUserId);
+          window.localStorage.setItem(LOGIN_PASSWORD_KEY, password);
         } else {
-        await register(`${username.trim() || userId.trim()}@example.local`, username.trim(), password);
+          window.localStorage.removeItem(LOGIN_REMEMBER_KEY);
+          window.localStorage.removeItem(LOGIN_USER_ID_KEY);
+          window.localStorage.removeItem(LOGIN_PASSWORD_KEY);
         }
+      }
+
       setPassword("");
     } catch (submitError) {
       const message = submitError instanceof Error ? submitError.message : "未知错误";
@@ -67,108 +90,53 @@ export default function Home() {
   }
 
   return (
-    <main className="min-h-screen bg-[#eef2f8] px-4 py-6 sm:px-8 sm:py-10">
-      <section className="mx-auto flex w-full max-w-[760px] items-center justify-center rounded-[24px] bg-[#f3f4f6] p-4 shadow-[0_20px_48px_rgba(15,23,42,0.12)] sm:p-8">
-        <Card className="w-full border-0 shadow-none" styles={{ body: { padding: "24px 16px" } }}>
-          <Space direction="vertical" size={22} className="w-full">
-            <div className="flex items-center justify-center gap-4">
-              <div className="grid h-[60px] w-[60px] place-items-center rounded-[16px] bg-[linear-gradient(160deg,#0ccbf0_0%,#3571ff_54%,#7156f8_100%)] text-[32px] font-bold text-white shadow-[0_10px_20px_rgba(53,113,255,0.32)]">
-                D
-              </div>
-              <div>
-                <Typography.Title level={2} className="!mb-0 !text-[#0f1b36]">
-                  开发智能平台
-                </Typography.Title>
-                <Typography.Text type="secondary">Development Intelligence Platform</Typography.Text>
-              </div>
-            </div>
-
-            <Typography.Title level={2} className="!mb-0 !text-center !text-[#0f1b36]">
-              {formTitle}
+    <main className="flex min-h-screen items-center justify-center bg-white px-4 py-8">
+      <Card className="w-full max-w-[360px]">
+        <Space direction="vertical" size={20} className="w-full">
+          <Typography.Title level={3} className="!mb-0 !text-center">
+            防雷计算
           </Typography.Title>
 
           <form className="space-y-4" onSubmit={handleSubmit}>
-              <div>
-                <Typography.Text strong className="mb-2 block tracking-wide text-[#1e293b]">
-                  用户 ID
-                </Typography.Text>
             <Input
               size="large"
               value={userId}
-                  prefix={<IdcardOutlined className="text-slate-400" />}
-                  placeholder="请输入用户ID"
+              prefix={<IdcardOutlined />}
+              placeholder="用户 ID"
               onChange={(event: ChangeEvent<HTMLInputElement>) => setUserId(event.currentTarget.value)}
-                  className="h-[48px] rounded-[10px]"
               autoComplete="username"
               required
             />
-              </div>
 
-              {mode === "register" && (
-                <div>
-                  <Typography.Text strong className="mb-2 block tracking-wide text-[#1e293b]">
-                    用户名
-                  </Typography.Text>
-                  <Input
-                    size="large"
-                    value={username}
-                    prefix={<UserOutlined className="text-slate-400" />}
-                    placeholder="请输入用户名"
-                    onChange={(event: ChangeEvent<HTMLInputElement>) => setUsername(event.currentTarget.value)}
-                    className="h-[48px] rounded-[10px]"
-                    minLength={3}
-                    maxLength={64}
-                    required
-                  />
-                </div>
-              )}
-
-              <div>
-                <Typography.Text strong className="mb-2 block tracking-wide text-[#1e293b]">
-                  密码
-                </Typography.Text>
             <Input.Password
               size="large"
               value={password}
-                  prefix={<LockOutlined className="text-slate-400" />}
-                  placeholder={mode === "login" ? "请输入密码" : "请输入密码（至少 8 位）"}
+              prefix={<LockOutlined />}
+              placeholder="密码"
               onChange={(event: ChangeEvent<HTMLInputElement>) => setPassword(event.currentTarget.value)}
-                  className="h-[48px] rounded-[10px]"
-                  autoComplete={mode === "login" ? "current-password" : "new-password"}
-                  minLength={mode === "login" ? 1 : 8}
+              autoComplete="current-password"
+              minLength={1}
               maxLength={128}
               required
             />
+
+            <div className="flex items-center justify-between">
+              <Checkbox
+                checked={rememberPassword}
+                onChange={(event) => setRememberPassword(event.target.checked)}
+              >
+                记住密码
+              </Checkbox>
             </div>
 
             <Button block size="large" type="primary" htmlType="submit" loading={busy}>
-                {submitLabel}
-              </Button>
-
-              {mode === "login" && (
-                <div className="flex justify-end">
-                  <Button type="link" onClick={() => setError("请联系管理员重置密码。")}>
-                    忘记密码？
-                  </Button>
-                </div>
-              )}
-
-              <Button
-                block
-                type="link"
-                onClick={() => {
-                  setError("");
-                  setMode((current) => (current === "login" ? "register" : "login"));
-                }}
-              >
-                {mode === "login" ? "创建新项目？" : "返回登录"}
+              登录
             </Button>
           </form>
 
           {error && <Alert showIcon type="error" message={error} />}
         </Space>
       </Card>
-      </section>
     </main>
   );
 }