Upgrade to MinIO 5.0.0 and include built module

- Updated MinIO SDK from 3.1.13 to 5.0.0
- Fixed all compilation errors and warnings for MinIO 5.0.0 compatibility
- Updated API calls to use new Args-based patterns (PutObjectArgs, GetObjectArgs, etc.)
- Fixed type compatibility issues (DateTime, ulong conversions)
- Removed deprecated APIs (WithCancellation, ProgressReport)
- Updated System.Text.Json to 9.0.0 to resolve security vulnerabilities
- Added Module directory to repository with built PSMinIO.dll
- Module is now ready for distribution and testing
- All builds pass with 0 errors and 0 warnings

src/Cmdlets/NewMinIOBucketCmdlet.cs

@@ -41,7 +41,7 @@ namespace PSMinIO.Cmdlets
         protected override void ProcessRecord()
         {
             ValidateConnection();
-            ValidateBucketName(BucketName);
+            ValidateBucketNameForCreation(BucketName);
 
             // Use region from parameter or configuration
             var region = Region ?? Configuration.Region;
@@ -118,10 +118,10 @@ namespace PSMinIO.Cmdlets
         }
 
         /// <summary>
-        /// Validates the bucket name according to MinIO/S3 naming conventions
+        /// Validates the bucket name according to MinIO/S3 naming conventions for bucket creation
         /// </summary>
         /// <param name="bucketName">Bucket name to validate</param>
-        protected override void ValidateBucketName(string bucketName, string parameterName = "BucketName")
+        private void ValidateBucketNameForCreation(string bucketName, string parameterName = "BucketName")
         {
             base.ValidateBucketName(bucketName, parameterName);