Missing key validation in KV

Observed behavior

Keys are not validated e.g.:

nats.net.v2/src/NATS.Client.KeyValueStore/NatsKVStore.cs

Lines 58 to 63 in 44a2191

    
           public async ValueTask<ulong> PutAsync<T>(string key, T value, INatsSerialize<T>? serializer = default, CancellationToken cancellationToken = default) 
        
           { 
        
               var ack = await _context.PublishAsync($"$KV.{Bucket}.{key}", value, serializer: serializer, cancellationToken: cancellationToken); 
        
               ack.EnsureSuccess(); 
        
               return ack.Seq; 
        
           }

Expected behavior

They should be validated based on design document https://github.com/nats-io/nats-architecture-and-design/blob/main/adr/ADR-8.md#10

Server and client version

2.10.x / 2.2.0

Breaking change

If validation is introduce this will break applications PUT requests with invalid entries

	public async ValueTask<ulong> PutAsync<T>(string key, T value, INatsSerialize<T>? serializer = default, CancellationToken cancellationToken = default)
	{
	var ack = await _context.PublishAsync($"$KV.{Bucket}.{key}", value, serializer: serializer, cancellationToken: cancellationToken);
	ack.EnsureSuccess();
	return ack.Seq;
	}