feat: weekly stats for junior

src/card/entities/transaction.entity.ts

@@ -32,7 +32,16 @@ export class Transaction {
   @Column({ name: 'rrn', nullable: true, type: 'varchar' })
   rrn!: string;
 
-  @Column({ type: 'decimal', precision: 12, scale: 2, name: 'transaction_amount' })
+  @Column({
+    type: 'decimal',
+    precision: 12,
+    scale: 2,
+    name: 'transaction_amount',
+    transformer: {
+      to: (value: number) => value,
+      from: (value: string) => parseFloat(value),
+    },
+  })
   transactionAmount!: number;
 
   @Column({ type: 'varchar', name: 'transaction_currency' })