Implemented the HashService and its service registration code

LiteCharms.Features/S3/Abstractions/S3ServiceBase.cs

@@ -1,4 +1,4 @@
-using static LiteCharms.Features.Extensions.Hash;
+using LiteCharms.Features.Hasher;
 
 namespace LiteCharms.Features.S3.Abstractions;
 
@@ -26,7 +26,7 @@ public abstract class S3ServiceBase(IAmazonS3 amazonS3)
 
             stream.Seek(0, SeekOrigin.Begin);
 
-            var fileHash = StreamToSha256Hash(stream);
+            var fileHash = HashService.StreamToSha256Hash(stream);
 
             if(string.IsNullOrWhiteSpace(fileHash))
                 return Result.Fail<string>("Failed to compute file hash.");
@@ -39,7 +39,7 @@ public abstract class S3ServiceBase(IAmazonS3 amazonS3)
                 Key = fileKey,
                 InputStream = stream,
                 ContentType = contentType,
-                UseChunkEncoding = false
+                UseChunkEncoding = false,
             };
 
             stream.Seek(0, SeekOrigin.Begin);