feat: 优化项目目录结构

apps/backend/src/user/entities/user.entity.ts

@@ -0,0 +1,91 @@
+import { Role } from 'src/auth/role.enum';
+import {
+  BeforeInsert,
+  Column,
+  CreateDateColumn,
+  DeleteDateColumn,
+  Entity,
+  Index,
+  PrimaryGeneratedColumn,
+  UpdateDateColumn,
+} from 'typeorm';
+import { v4 as uuidv4 } from 'uuid';
+
+@Entity()
+@Index('IDX_user_userid', ['userId'], { unique: true })
+@Index('IDX_user_username', ['username'], { unique: true })
+@Index('IDX_user_email', ['email'], {
+  unique: true,
+  where: 'email IS NOT NULL',
+})
+@Index('IDX_user_phone', ['phone'], {
+  unique: true,
+  where: 'phone IS NOT NULL',
+})
+export class User {
+  @PrimaryGeneratedColumn('uuid')
+  userId: string;
+
+  @Column({ length: 32 })
+  username: string;
+
+  @Column({ length: 30 })
+  nickname: string;
+
+  @BeforeInsert()
+  generateDefaults() {
+    if (!this.username) {
+      this.username = `user_${uuidv4().replace(/-/g, '').slice(0, 27)}`;
+    }
+    if (!this.nickname) {
+      this.nickname = `用户_${uuidv4().replace(/-/g, '').slice(0, 8)}`;
+    }
+  }
+
+  @Column({ nullable: true, type: 'char', length: 32 })
+  salt: string;
+
+  @Column({ nullable: true, type: 'char', length: 64 })
+  password_hash: string;
+
+  @Column({
+    nullable: true,
+    length: 254,
+    transformer: {
+      to: (value: string | null) => value?.trim() || null,
+      from: (value: string | null) => value,
+    },
+  }) // RFC 5321
+  email: string | null;
+
+  @Column({
+    nullable: true,
+    length: 20,
+    transformer: {
+      to: (value: string | null) => value?.trim() || null,
+      from: (value: string | null) => value,
+    },
+  }) // China Mainland
+  phone: string | null;
+
+  @Column({
+    nullable: true,
+    transformer: {
+      to: (value: string | null) => value?.trim() || null,
+      from: (value: string | null) => value,
+    },
+  })
+  avatar: string;
+
+  @CreateDateColumn({ precision: 3 })
+  createdAt: Date;
+
+  @UpdateDateColumn({ precision: 3 })
+  updatedAt: Date;
+
+  @DeleteDateColumn({ nullable: true, precision: 3 })
+  deletedAt: Date;
+
+  @Column('simple-array', { default: '' })
+  roles: Role[];
+}