fix: add Windows compatibility for zip extraction and file copy

- Use PowerShell Expand-Archive on Windows instead of unzip
- Use xcopy on Windows instead of cp -r in shell fallback
- Bump version to 1.0.3

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

cli/src/index.ts

@@ -12,7 +12,7 @@ const program = new Command();
 program
   .name('uipro')
   .description('CLI to install UI/UX Pro Max skill for AI coding assistants')
-  .version('1.0.2');
+  .version('1.0.3');
 
 program
   .command('init')