注册支持用户名/手机号/邮箱 + 镜像站部署脚本 + AI 助手 Tool Calling 重构

- Prisma User 模型新增 username 字段（唯一索引）
- 注册先查重复再创建，返回友好中文提示（非 500）
- 登录支持用户名/手机号/邮箱三种方式
- 前端注册表单增加用户名输入框，预校验 2-20 位格式
- 新增 scripts/deploy.sh：一键构建并部署主站+镜像站+重启后端+重载 Nginx
- 镜像站 www.yuzhiran.com.cn Nginx 配置与主站同步
- AI 助手架构升级：用户端/管理后台均采用完整 Tool Calling 架构
- 新增 UserAiAssistantService（18 工具）+ AiAssistantController
- admin 助手新增 search + mark-all-notifications-read 工具
- 修复注册 500 错误：catch Prisma P2002 → BadRequestException
- Baidu Analytics Script 注入 root layout

backend/src/modules/auth/auth.controller.ts

@@ -3,6 +3,7 @@ import { ApiTags, ApiBearerAuth } from '@nestjs/swagger';
 import { AuthGuard } from '@nestjs/passport';
 import { AuthService } from './auth.service';
 import { RegisterDto } from './dto/register.dto';
+import { LoginDto } from './dto/login.dto';
 
 @ApiTags('认证')
 @Controller('auth')
@@ -15,7 +16,7 @@ export class AuthController {
   }
 
   @Post('login')
-  async login(@Body() body: { account: string; password: string }) {
+  async login(@Body() body: LoginDto) {
     return this.authService.login(body.account, body.password);
   }
 

backend/src/modules/auth/auth.service.ts

@@ -1,4 +1,4 @@
-import { Injectable, UnauthorizedException } from '@nestjs/common';
+import { Injectable, UnauthorizedException, BadRequestException } from '@nestjs/common';
 import { JwtService } from '@nestjs/jwt';
 import * as bcrypt from 'bcryptjs';
 import { PrismaService } from '../../prisma/prisma.service';
@@ -10,14 +10,32 @@ export class AuthService {
     private jwtService: JwtService,
   ) {}
 
-  async register(data: { phone?: string; email?: string; password: string; nickname?: string }) {
+  async register(data: { username?: string; phone?: string; email?: string; password: string; nickname?: string }) {
+    if (!data.username && !data.phone && !data.email) {
+      throw new BadRequestException('请填写用户名、手机号或邮箱');
+    }
+
+    if (data.username) {
+      const exists = await this.prisma.user.findUnique({ where: { username: data.username } });
+      if (exists) throw new BadRequestException('用户名已被注册');
+    }
+    if (data.phone) {
+      const exists = await this.prisma.user.findUnique({ where: { phone: data.phone } });
+      if (exists) throw new BadRequestException('手机号已被注册');
+    }
+    if (data.email) {
+      const exists = await this.prisma.user.findUnique({ where: { email: data.email } });
+      if (exists) throw new BadRequestException('邮箱已被注册');
+    }
+
     const passwordHash = await bcrypt.hash(data.password, 10);
     const user = await this.prisma.user.create({
       data: {
-        phone: data.phone,
-        email: data.email,
+        username: data.username || null,
+        phone: data.phone || null,
+        email: data.email || null,
         passwordHash,
-        nickname: data.nickname || data.phone || data.email?.split('@')[0],
+        nickname: data.nickname || data.username || data.phone || data.email?.split('@')[0],
       },
     });
     return this.generateTokens(user.id);
@@ -26,7 +44,7 @@ export class AuthService {
   async login(account: string, password: string) {
     const user = await this.prisma.user.findFirst({
       where: {
-        OR: [{ phone: account }, { email: account }],
+        OR: [{ username: account }, { phone: account }, { email: account }],
         deletedAt: null,
       },
     });
@@ -68,6 +86,7 @@ export class AuthService {
       where: { id: userId },
       select: {
         id: true,
+        username: true,
         phone: true,
         email: true,
         nickname: true,

backend/src/modules/auth/dto/login.dto.ts

@@ -0,0 +1,11 @@
+import { IsNotEmpty, IsString } from 'class-validator';
+
+export class LoginDto {
+  @IsNotEmpty({ message: '请输入账号' })
+  @IsString()
+  account: string;
+
+  @IsNotEmpty({ message: '请输入密码' })
+  @IsString()
+  password: string;
+}

backend/src/modules/auth/dto/register.dto.ts

@@ -1,12 +1,16 @@
-import { IsNotEmpty, IsOptional, IsString, MinLength } from 'class-validator';
+import { IsNotEmpty, IsOptional, IsString, MinLength, Matches } from 'class-validator';
 
 export class RegisterDto {
   @IsOptional()
-  @IsString()
+  @Matches(/^[a-zA-Z0-9_\u4e00-\u9fa5]{2,20}$/, { message: '用户名格式不正确（2-20位，支持中英文、数字、下划线）' })
+  username?: string;
+
+  @IsOptional()
+  @Matches(/^1[3-9]\d{9}$/, { message: '手机号格式不正确' })
   phone?: string;
 
   @IsOptional()
-  @IsString()
+  @Matches(/^[^\s@]+@[^\s@]+\.[^\s@]+$/, { message: '邮箱格式不正确' })
   email?: string;
 
   @IsNotEmpty({ message: '密码不能为空' })