fix relations

api/src/entities/User.ts

@@ -1,4 +1,5 @@
 import { Column, CreateDateColumn, Entity, OneToMany, PrimaryGeneratedColumn } from 'typeorm';
+import type { Relation } from 'typeorm';
 import { Category } from './Category.js';
 import { Expense } from './Expense.js';
 
@@ -50,8 +51,8 @@ export class User {
   createdAt!: Date;
 
   @OneToMany(() => Category, (category) => category.user)
-  categories!: Category[];
+  categories!: Relation<Category[]>;
 
   @OneToMany(() => Expense, (expense) => expense.user)
-  expenses!: Expense[];
+  expenses!: Relation<Expense[]>;
 }