Initial Flutter project added

lib/screens/otp_screen.dart

@@ -0,0 +1,67 @@
+import 'package:flutter/material.dart';
+import '../widgets/rounded_input.dart';
+import '../widgets/primary_button.dart';
+import '../services/request_service.dart';
+import 'waiting_screen.dart';
+
+class OtpScreen extends StatefulWidget {
+  final Map<String, dynamic> signupPayload;
+  const OtpScreen({super.key, required this.signupPayload});
+
+  @override
+  State<OtpScreen> createState() => _OtpScreenState();
+}
+
+class _OtpScreenState extends State<OtpScreen> {
+  final otpController = TextEditingController();
+  bool verifying = false;
+
+  static const String defaultOtp = '123456'; // default OTP as you said
+
+  void _verifyAndSubmit() async {
+    final entered = otpController.text.trim();
+    if (entered.length != 6) {
+      ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text('Enter 6 digit OTP')));
+      return;
+    }
+
+    if (entered != defaultOtp) {
+      ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text('Invalid OTP')));
+      return;
+    }
+
+    setState(() => verifying = true);
+
+    // send signup payload to backend
+    final res = await RequestService().sendSignup(widget.signupPayload);
+
+    setState(() => verifying = false);
+
+    if (res['status'] == true || res['status'] == 'success') {
+      // navigate to waiting screen
+      Navigator.of(context).pushReplacement(MaterialPageRoute(builder: (_) => const WaitingScreen()));
+    } else {
+      final message = res['message']?.toString() ?? 'Failed';
+      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(message)));
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final pad = MediaQuery.of(context).size.width * 0.06;
+    return Scaffold(
+      appBar: AppBar(title: const Text("OTP Verification")),
+      body: Padding(
+        padding: EdgeInsets.symmetric(horizontal: pad, vertical: 20),
+        child: Column(children: [
+          const Text("Enter the 6-digit OTP sent to your mobile/email. (Default OTP: 123456)"),
+          const SizedBox(height: 20),
+          RoundedInput(controller: otpController, hint: "Enter OTP", keyboardType: TextInputType.number),
+          const SizedBox(height: 14),
+          PrimaryButton(label: "Verify & Submit", onTap: _verifyAndSubmit, busy: verifying),
+        ]),
+      ),
+    );
+  }
+}
+