Add Windows platform support

bin/vide.dart

@@ -22,5 +22,5 @@ void main(List<String> args) async {
     workingDirProvider.overrideWithValue(Directory.current.path),
   ];
 
-  app.main(args, overrides: overrides);
+  await app.main(args, overrides: overrides);
 }

lib/main.dart

@@ -28,7 +28,7 @@ final _canUseToolCallbackFactoryOverride = canUseToolCallbackFactoryProvider.ove
   };
 });
 
-void main(List<String> args, {List<Override> overrides = const []}) async {
+Future<void> main(List<String> args, {List<Override> overrides = const []}) async {
   // Initialize Sentry and set up nocterm error handler
   await SentryService.init();
 

packages/vide_core/lib/services/vide_config_manager.dart

@@ -69,15 +69,17 @@ class VideConfigManager {
   ///
   /// Replaces forward slashes (/) with hyphens (-)
   /// Example: /Users/bob/project -> -Users-bob-project
+  /// On Windows: D:\project -> D-project (colon removed as it's invalid in filenames)
   String _encodeProjectPath(String absolutePath) {
     // Normalize the path first to handle trailing slashes, etc.
     final normalized = path.normalize(absolutePath);
 
     // Replace path separators with hyphens
-    // On Windows, also handle backslashes
+    // On Windows, also handle backslashes and colons (invalid in filenames)
     String encoded = normalized.replaceAll('/', '-');
     if (Platform.isWindows) {
       encoded = encoded.replaceAll('\\', '-');
+      encoded = encoded.replaceAll(':', '');  // Remove colons (e.g., D: -> D)
     }
 
     return encoded;