fix: handle IPv6 getpeername tuple (#20)

[6C656C65]

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Other (please describe):

What is the current behavior?

When calling server_socket.getpeername(), the code assumes the returned value is always a 2-element tuple (host, port).

However, with IPv6 connections, the method returns a 4-element tuple (host, port, flowinfo, scopeid), which causes unpacking errors such as:

ValueError: too many values to unpack (expected 2)

This breaks the application when handling IPv6 requests.

Issue Number: #20

What is the new behavior?

• Properly handles both IPv4 and IPv6 tuple formats returned by getpeername()
• Extracts only host and port in a safe and version-agnostic way
• Adds test coverage to reproduce the issue and validate the fix
• Ensures compatibility regardless of the underlying IP protocol used by the client

Other information

[LudovicRousseau]

Remove this line or you still get the problem.