open file path

lib/screens/home_screen.dart

@@ -1,5 +1,7 @@
+import 'dart:io';
 import 'package:flutter/foundation.dart' show kIsWeb;
 import 'package:flutter/material.dart';
+import 'package:path/path.dart' as path;
 import '../models/project.dart';
 import '../services/storage_service.dart';
 import 'project_screen.dart';
@@ -90,6 +92,29 @@ class _HomeScreenState extends State<HomeScreen> {
     );
   }
 
+  Future<void> _openFolder(String filePath) async {
+    try {
+      final directory = path.dirname(filePath);
+      
+      if (Platform.isLinux) {
+        await Process.run('xdg-open', [directory]);
+      } else if (Platform.isWindows) {
+        await Process.run('explorer', [directory]);
+      } else if (Platform.isMacOS) {
+        await Process.run('open', [directory]);
+      }
+    } catch (e) {
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(
+          content: Text('Failed to open folder: $e'),
+          backgroundColor: Colors.red,
+          behavior: SnackBarBehavior.floating,
+        ),
+      );
+    }
+  }
+
   Future<void> _showStorageInfo() async {
     final filePath = await _storageService.getProjectsFilePath();
     if (!mounted) return;
@@ -132,6 +157,14 @@ class _HomeScreenState extends State<HomeScreen> {
             onPressed: () => Navigator.pop(context),
             child: const Text('Close'),
           ),
+          FilledButton.icon(
+            onPressed: () {
+              _openFolder(filePath);
+              Navigator.pop(context);
+            },
+            icon: const Icon(Icons.folder_open),
+            label: const Text('Open Folder'),
+          ),
         ],
       ),
     );