Add Beneficiary Validation API integration

lib/features/beneficiaries/screens/beneficiary_result_page.dart

@@ -1,18 +1,84 @@
 import 'package:flutter/material.dart';
+import 'package:lottie/lottie.dart';
+import 'package:confetti/confetti.dart';
+import 'dart:math';
 
-class BeneficiaryResultPage extends StatelessWidget {
+class BeneficiaryResultPage extends StatefulWidget {
   final bool isSuccess;
 
   const BeneficiaryResultPage({super.key, required this.isSuccess});
 
+  @override
+  State<BeneficiaryResultPage> createState() => _BeneficiaryResultPageState();
+}
+
+class _BeneficiaryResultPageState extends State<BeneficiaryResultPage> {
+  late ConfettiController _confettiController;
+
+  @override
+  void initState() {
+    super.initState();
+    _confettiController =
+        ConfettiController(duration: const Duration(seconds: 3));
+    if (widget.isSuccess) {
+      _confettiController.play();
+    }
+  }
+
+  @override
+  void dispose() {
+    _confettiController.dispose();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
+    final successAnimation = 'assets/animations/done.json';
+    final errorAnimation = 'assets/animations/error.json';
+
     return Scaffold(
-      body: Center(
-        child: Text(
-          isSuccess ? 'Beneficiary Added Successfully!' : 'Beneficiary Addition Failed!',
-          style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
-        ),
+      backgroundColor: widget.isSuccess ? Colors.green[50] : Colors.red[50],
+      body: Stack(
+        alignment: Alignment.center,
+        children: [
+          Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              Lottie.asset(
+                widget.isSuccess ? successAnimation : errorAnimation,
+                width: 150,
+                height: 150,
+                repeat: false,
+              ),
+              const SizedBox(height: 20),
+              Text(
+                widget.isSuccess
+                    ? 'Beneficiary Added Successfully!'
+                    : 'Beneficiary Addition Failed!',
+                style: TextStyle(
+                  fontSize: 20,
+                  fontWeight: FontWeight.bold,
+                  color: widget.isSuccess ? Colors.green : Colors.red,
+                ),
+                textAlign: TextAlign.center,
+              ),
+            ],
+          ),
+          if (widget.isSuccess)
+            Align(
+              alignment: Alignment.topCenter,
+              child: ConfettiWidget(
+                confettiController: _confettiController,
+                blastDirection: pi / 2,
+                maxBlastForce: 10,
+                minBlastForce: 5,
+                emissionFrequency: 0.05,
+                numberOfParticles: 20,
+                gravity: 0.2,
+                shouldLoop: false,
+              ),
+            ),
+        ],
       ),
     );
   }