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/package.json

@@ -1,6 +1,6 @@
 {
   "name": "uipro-cli",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "description": "CLI to install UI/UX Pro Max skill for AI coding assistants",
   "type": "module",
   "bin": {

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')

cli/src/utils/extract.ts

@@ -9,7 +9,12 @@ const execAsync = promisify(exec);
 
 export async function extractZip(zipPath: string, destDir: string): Promise<void> {
   try {
-    await execAsync(`unzip -o "${zipPath}" -d "${destDir}"`);
+    const isWindows = process.platform === 'win32';
+    if (isWindows) {
+      await execAsync(`powershell -Command "Expand-Archive -Path '${zipPath}' -DestinationPath '${destDir}' -Force"`);
+    } else {
+      await execAsync(`unzip -o "${zipPath}" -d "${destDir}"`);
+    }
   } catch (error) {
     throw new Error(`Failed to extract zip: ${error}`);
   }
@@ -58,7 +63,11 @@ export async function copyFolders(
     } catch {
       // Try shell fallback for older Node versions
       try {
-        await execAsync(`cp -r "${sourcePath}/." "${targetPath}"`);
+        if (process.platform === 'win32') {
+          await execAsync(`xcopy "${sourcePath}" "${targetPath}" /E /I /Y`);
+        } else {
+          await execAsync(`cp -r "${sourcePath}/." "${targetPath}"`);
+        }
         copiedFolders.push(folder);
       } catch {
         // Skip if copy fails