feat: Implement major features and fix theming bug

This commit introduces several new features and a critical bug fix.

- Implemented a full "Quick Pay" flow for both within and outside the bank, including IFSC validation, beneficiary verification, and a TPIN-based payment process.
- Added a date range filter to the Account Statement screen and streamlined the UI by removing the amount filters.
- Fixed a major bug that prevented dynamic theme changes from being applied. The app now correctly switches between color themes.
- Refactored and improved beneficiary management, transaction models, and the fund transfer flow to support NEFT/RTGS.

lib/features/beneficiaries/screens/manage_beneficiaries_screen.dart

@@ -1,18 +1,14 @@
 import 'package:flutter/material.dart';
 import 'package:kmobile/data/models/beneficiary.dart';
 import 'package:kmobile/features/beneficiaries/screens/add_beneficiary_screen.dart';
-import '../../../data/models/user.dart';
 import '../../../l10n/app_localizations.dart';
 import '../../../di/injection.dart';
 import 'package:kmobile/api/services/beneficiary_service.dart';
 import 'package:shimmer/shimmer.dart';
-//import 'package:kmobile/data/models/user.dart';
 
 class ManageBeneficiariesScreen extends StatefulWidget {
-  // final List<User> users;
-  // final int selectedIndex;
- 
-  const ManageBeneficiariesScreen({super.key});
+  final String customerName;
+  const ManageBeneficiariesScreen({super.key, required this.customerName});
 
   @override
   State<ManageBeneficiariesScreen> createState() =>
@@ -21,12 +17,8 @@ class ManageBeneficiariesScreen extends StatefulWidget {
 
 class _ManageBeneficiariesScreen extends State<ManageBeneficiariesScreen> {
   var service = getIt<BeneficiaryService>();
-//  late User selectedUser = widget.users[widget.selectedIndex];
-  //final BeneficiaryService _service = BeneficiaryService();
   bool _isLoading = true;
-   int selectedAccountIndex = 0;
   List<Beneficiary> _beneficiaries = [];
-  
 
   @override
   void initState() {
@@ -37,7 +29,7 @@ class _ManageBeneficiariesScreen extends State<ManageBeneficiariesScreen> {
   Future<void> _loadBeneficiaries() async {
     final data = await service.fetchBeneficiaryList();
     setState(() {
-      _beneficiaries = data ;
+      _beneficiaries = data;
       _isLoading = false;
     });
   }
@@ -68,9 +60,26 @@ class _ManageBeneficiariesScreen extends State<ManageBeneficiariesScreen> {
     );
   }
 
+  Widget _getBankLogo(String? bankName) {
+    if (bankName != null && bankName.toLowerCase().contains('state bank of india')) {
+      return Image.asset(
+        'assets/images/sbi_logo.png',
+        width: 40,
+        height: 40,
+      );
+    } else {
+      return const Icon(
+        Icons.account_balance,
+        size: 40,
+        color: Colors.grey,
+      );
+    }
+  }
+
   Widget _buildBeneficiaryList() {
     if (_beneficiaries.isEmpty) {
-      return Center(child: Text(AppLocalizations.of(context).noBeneficiaryFound));
+      return Center(
+          child: Text(AppLocalizations.of(context).noBeneficiaryFound));
     }
     return ListView.builder(
       itemCount: _beneficiaries.length,
@@ -79,16 +88,21 @@ class _ManageBeneficiariesScreen extends State<ManageBeneficiariesScreen> {
         return ListTile(
           leading: CircleAvatar(
             radius: 24,
-            backgroundColor: Theme.of(context).primaryColor.withOpacity(0.2),
-            child: Text(
-              item.name.isNotEmpty
-                  ? item.name[0].toUpperCase()
-                  : '?',
-              style: const TextStyle(fontWeight: FontWeight.bold),
-            ),
+            backgroundColor: Colors.transparent,
+            child: _getBankLogo(item.bankName),
           ),
           title: Text(item.name ?? 'Unknown'),
-          subtitle: Text(item.accountNo ?? 'No account number'),
+          subtitle: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Text(item.accountNo ?? 'No account number'),
+              if (item.bankName != null && item.bankName!.isNotEmpty)
+                Text(
+                  item.bankName!,
+                  style: TextStyle(fontSize: 12, color: Colors.grey[600]),
+                ),
+            ],
+          ),
         );
       },
     );
@@ -96,6 +110,7 @@ class _ManageBeneficiariesScreen extends State<ManageBeneficiariesScreen> {
 
   @override
   Widget build(BuildContext context) {
+    String customerName = widget.customerName;
     return Scaffold(
       appBar: AppBar(
         title: Text(AppLocalizations.of(context).beneficiaries),
@@ -108,7 +123,8 @@ class _ManageBeneficiariesScreen extends State<ManageBeneficiariesScreen> {
             Navigator.push(
               context,
               MaterialPageRoute(
-                builder: (context) => AddBeneficiaryScreen(),
+                builder: (context) =>
+                    AddBeneficiaryScreen(customerName: customerName),
               ),
             );
           },
@@ -120,4 +136,4 @@ class _ManageBeneficiariesScreen extends State<ManageBeneficiariesScreen> {
       ),
     );
   }
-}
+}