Initial commit of Doormile CRM Mobile with UI modernizations

lib/screens/update_screen.dart

@@ -0,0 +1,93 @@
+import 'package:flutter/material.dart';
+import 'package:in_app_update/in_app_update.dart';
+import 'dart:io';
+import '../theme/app_theme.dart';
+
+class UpdateRequiredScreen extends StatelessWidget {
+  const UpdateRequiredScreen({super.key});
+
+  Future<void> _triggerNativeUpdate() async {
+    try {
+      if (Platform.isAndroid) {
+        await InAppUpdate.performImmediateUpdate();
+      }
+    } catch (_) {}
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: AppColors.scaffold,
+      body: SafeArea(
+        child: Padding(
+          padding: const EdgeInsets.symmetric(horizontal: 24.0),
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              // Illustration or Icon
+              Container(
+                width: 120,
+                height: 120,
+                decoration: BoxDecoration(
+                  color: const Color(0xFFEFF4FF),
+                  shape: BoxShape.circle,
+                ),
+                child: const Icon(
+                  Icons.system_update_rounded,
+                  size: 50,
+                  color: AppColors.primary,
+                ),
+              ),
+              const SizedBox(height: 32),
+
+              // Text Content
+              const Text(
+                'Update Required',
+                style: TextStyle(
+                  fontSize: 24,
+                  fontWeight: FontWeight.w800,
+                  color: AppColors.darkBlue,
+                ),
+              ),
+              const SizedBox(height: 16),
+              const Text(
+                'A new version of Doormile CRM is available. You must update to the latest version to continue using the app securely.',
+                textAlign: TextAlign.center,
+                style: TextStyle(
+                  fontSize: 14,
+                  height: 1.5,
+                  color: AppColors.textSecondary,
+                ),
+              ),
+              const SizedBox(height: 48),
+
+              // Update Button
+              SizedBox(
+                width: double.infinity,
+                height: 54,
+                child: ElevatedButton(
+                  onPressed: _triggerNativeUpdate,
+                  style: ElevatedButton.styleFrom(
+                    backgroundColor: AppColors.primary,
+                    shape: RoundedRectangleBorder(
+                      borderRadius: BorderRadius.circular(12),
+                    ),
+                    elevation: 0,
+                  ),
+                  child: const Text(
+                    'Update Now',
+                    style: TextStyle(
+                      color: Colors.white,
+                      fontSize: 15,
+                      fontWeight: FontWeight.w700,
+                    ),
+                  ),
+                ),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}