feat: add admin tests read and update endpoints

src/modules/questions/entities/question.entity.ts

@@ -14,35 +14,35 @@ import { Choice } from './choice.entity';
 @Entity()
 export class Question {
   @PrimaryGeneratedColumn()
-  id: number;
+  id!: number;
 
   @ManyToOne(() => Test, (test) => test.questions, {
     onDelete: 'CASCADE',
   })
-  test: Test;
+  test!: Test;
 
   @Column({
     type: 'enum',
     enum: QuestionType,
     default: QuestionType.MULTI_CHOICE,
   })
-  type: QuestionType;
+  type!: QuestionType;
 
   @Column({ type: 'text' })
-  content: string;
+  content!: string;
 
   @Column({ type: 'int', nullable: false })
-  order: number;
+  order!: number;
 
   @Column({ type: 'boolean', default: true })
-  required: boolean;
+  required!: boolean;
 
   @Column({ type: 'jsonb', nullable: true })
-  metadata: QuestionMetadata;
+  metadata!: QuestionMetadata;
 
   @OneToMany(() => Choice, (choice) => choice.question)
   choices?: Array<Choice>;
 
   @CreateDateColumn()
-  createdAt: Date;
+  createdAt!: Date;
 }