Add MinIO S3 storage integration

- Add minio disk configuration in filesystems.php
- Create helper functions for MinIO URLs (minio_url, minio_image_url)
- Update composer.json with AWS SDK (for future S3 support)
- Add MinIO env vars to docker-compose.local.yml
- Add .env examples for MinIO configuration

app/helpers.php

@@ -0,0 +1,33 @@
+<?php
+
+if (!function_exists('minio_url')) {
+    /**
+     * Generate MinIO URL for a file
+     *
+     * @param string $path File path relative to bucket
+     * @return string Full MinIO URL
+     */
+    function minio_url($path)
+    {
+        $bucket = env('MINIO_BUCKET', 'crewsportswear');
+        $baseUrl = env('MINIO_URL', 'https://minio.crewsportswear.app');
+        
+        // Remove leading slash if present
+        $path = ltrim($path, '/');
+        
+        return $baseUrl . '/' . $bucket . '/' . $path;
+    }
+}
+
+if (!function_exists('minio_image_url')) {
+    /**
+     * Generate MinIO URL for an image in uploads/images/
+     *
+     * @param string $filename Image filename
+     * @return string Full MinIO URL
+     */
+    function minio_image_url($filename)
+    {
+        return minio_url('uploads/images/' . $filename);
+    }
+}