added database for bill intitate and bill payment and removed the polling logic

src/main/java/com/billpaymentservice/bbps/entites/BillerResponse.java

@@ -0,0 +1,60 @@
+package com.billpaymentservice.bbps.entites;
+
+import java.time.LocalDate;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import lombok.Getter;
+import lombok.Setter;
+
+@Entity
+@Table(name = "biller_response")
+@Getter
+@Setter
+public class BillerResponse {
+
+    @Id
+    @GeneratedValue
+    private Long id;
+
+    @Column(name = "amount")
+    private String amount;
+
+    @Column(name = "bill_date")
+    private String billDate;
+
+    @Column(name = "bill_id")
+    private String billId;
+
+    @Column(name = "bill_number")
+    private String billNumber;
+
+    @Column(name = "bill_period")
+    private String billPeriod;
+
+    @Column(name = "cust_conv_fee")
+    private String custConvFee;
+
+    @Column(name = "cou_cust_conv_fee")
+    private String couCustConvFee;
+
+    @Column(name = "due_date")
+    private String dueDate;
+
+    @Column(name = "customer_name")
+    private String customerName;
+
+    @Column(name = "amount_option")
+    private Boolean amountOption;
+
+    @ManyToOne
+    @JoinColumn(name = "bill_master_id")
+    private BillMaster billMaster;
+
+    // getters and setters
+}