perf: 优化类型问题

src/modules/auth/entities/user.entity.ts

@@ -10,28 +10,28 @@ import {
 @Entity('wx_users')
 export class User {
   @PrimaryGeneratedColumn('uuid')
-  id: string;
+  id!: string;
 
   @Index('idx_user_openid', { unique: true })
   @Column({ type: 'varchar', length: 128 })
-  openid: string;
+  openid!: string;
 
   @Column({ type: 'varchar', length: 255, name: 'session_key', nullable: true })
-  sessionKey: string | null;
+  sessionKey!: string | null;
 
   @Column({ type: 'varchar', length: 100, nullable: true })
-  nickname: string | null;
+  nickname!: string | null;
 
   @Column({ type: 'text', name: 'avatar_url', nullable: true })
-  avatarUrl: string | null;
+  avatarUrl!: string | null;
 
   /** 积分（默认 10） */
   @Column({ type: 'int', default: 10 })
-  points: number;
+  points!: number;
 
   @CreateDateColumn({ name: 'created_at' })
-  createdAt: Date;
+  createdAt!: Date;
 
   @UpdateDateColumn({ name: 'updated_at' })
-  updatedAt: Date;
+  updatedAt!: Date;
 }