Logs for unsupported Diagnostics feature

[ap0int3d]

Hi,
When I connect to a device that does not offer "Diagnostics" support, the logs show the following messages:

webssh  | Secsh channel 1 open FAILED: : Resource shortage
webssh  | Secsh channel 2 open FAILED: : Resource shortage
webssh  | Secsh channel 3 open FAILED: : Resource shortage
webssh  | Secsh channel 4 open FAILED: : Resource shortage
webssh  | Secsh channel 5 open FAILED: : Resource shortage

It is probably the same when SFTP is not available.
Do you think the messages could be clearer ?

[bifrost0x]

Implemented and merged in PR #207.

WebSSH now recognizes Paramiko channel-open reason code 4 as a temporary remote resource shortage for the optional Diagnostics and SFTP channels. It reports a clear application-level capacity message instead of exposing the raw remote exception, while the primary terminal remains available.

Diagnostics and SFTP remain retryable and automatically try again every 60 seconds while the SSH session is eligible. A temporary MaxSessions or channel limit therefore no longer disables those features for the rest of the session.

The special handling is deliberately limited to reason code 4; genuinely unsupported features and primary SSH failures retain their existing behavior. Thanks for reporting the confusing logs.