Added Profile page and improved UI for list items

lib/screens/profile/profile_screen.dart

@@ -0,0 +1,162 @@
+import 'package:flutter/material.dart';
+import 'package:inventory_system/screens/bottom_nav_bar.dart';
+import 'package:inventory_system/screens/title_bar.dart';
+import 'package:inventory_system/services/auth_service.dart';
+import 'package:inventory_system/screens/nav_bar.dart';
+import 'package:inventory_system/services/session_manager.dart';
+
+class ProfileScreen extends StatefulWidget {
+  const ProfileScreen({super.key});
+
+  @override
+  State<ProfileScreen> createState() => _ProfileScreenState();
+}
+
+class _ProfileScreenState extends State<ProfileScreen> {
+  final AuthService _authService = AuthService();
+  late Future<Map<String, dynamic>> _userProfileFuture;
+
+  @override
+  void initState() {
+    super.initState();
+    _userProfileFuture = _authService.fetchUserProfile();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final isAdmin = SessionManager.instance.currentUser?['isAdmin'] ?? false;
+
+    return Scaffold(
+      backgroundColor: const Color(0xFFF5F5F7),
+      appBar: const TitleBar(title: 'Profile'),
+      drawer: NavBar(isAdmin: isAdmin, selectedScreen: AppScreen.profile),
+      body: FutureBuilder<Map<String, dynamic>>(
+        future: _userProfileFuture,
+        builder: (context, snapshot) {
+          if (snapshot.connectionState == ConnectionState.waiting) {
+            return const Center(child: CircularProgressIndicator());
+          }
+          if (snapshot.hasError) {
+             return Center(child: Text('Error: ${snapshot.error}'));
+          }
+          
+          final data = snapshot.data;
+          if (data == null || data['success'] != true) {
+            return Center(child: Text(data?['message'] ?? 'Failed to load profile'));
+          }
+
+          final userInfo = data['data'];
+
+          return SingleChildScrollView(
+            padding: const EdgeInsets.all(24.0),
+            child: Column(
+              children: [
+                const SizedBox(height: 20),
+                // Avatar
+                Container(
+                  width: 100,
+                  height: 100,
+                  decoration: BoxDecoration(
+                    color: Colors.white,
+                    shape: BoxShape.circle,
+                    boxShadow: [
+                      BoxShadow(
+                         color: Colors.black.withOpacity(0.1),
+                         blurRadius: 10,
+                         offset: const Offset(0, 5),
+                      ),
+                    ],
+                  ),
+                  child: const Icon(Icons.person, size: 60, color: Colors.grey),
+                ),
+                const SizedBox(height: 30),
+                
+                _buildInfoCard(userInfo),
+              ],
+            ),
+          );
+        },
+      ),
+      bottomNavigationBar: BottomNavBar(
+        selectedIndex: 2,
+        onItemTapped: (index) {
+          // Handled by BottomNavBar internal logic
+        },
+      ),
+    );
+  }
+
+  Widget _buildInfoCard(Map<String, dynamic> user) {
+     final email = user['email'] ?? 'N/A';
+     final company = user['company'] ?? 'N/A';
+     final departmentObj = user['department'];
+     String deptName = 'N/A';
+     if (departmentObj != null) {
+       deptName = departmentObj['departmentName'] ?? 'N/A';
+     }
+     final roles = user['role'] as List<dynamic>?;
+     final roleStr = roles?.join(', ') ?? 'N/A';
+
+     return Container(
+       width: double.infinity,
+       padding: const EdgeInsets.all(24),
+       decoration: BoxDecoration(
+         color: Colors.white,
+         borderRadius: BorderRadius.circular(20),
+         boxShadow: [
+            BoxShadow(
+              color: Colors.black.withOpacity(0.05),
+              blurRadius: 15,
+              offset: const Offset(0, 5),
+            ),
+         ],
+       ),
+       child: Column(
+         crossAxisAlignment: CrossAxisAlignment.start,
+         children: [
+            _buildInfoRow('Email', email, Icons.email_outlined),
+            const Divider(height: 32),
+            _buildInfoRow('Company', company, Icons.business_outlined),
+            const Divider(height: 32),
+            _buildInfoRow('Department', deptName, Icons.meeting_room_outlined),
+            const Divider(height: 32),
+            _buildInfoRow('Role', roleStr, Icons.admin_panel_settings_outlined),
+         ],
+       ),
+     );
+  }
+
+  Widget _buildInfoRow(String label, String value, IconData icon) {
+    return Row(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Icon(icon, color: Colors.blue.shade700, size: 24),
+        const SizedBox(width: 16),
+        Expanded(
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Text(
+                label,
+                style: TextStyle(
+                  fontSize: 14,
+                  color: Colors.grey.shade500,
+                  fontWeight: FontWeight.w500,
+                ),
+              ),
+              const SizedBox(height: 4),
+              Text(
+                value,
+                style: const TextStyle(
+                  fontSize: 16,
+                  color: Colors.black87,
+                  fontWeight: FontWeight.w600,
+                ),
+              ),
+            ],
+          ),
+        ),
+      ],
+    );
+  }
+}