[client] Add bind activity listener to bypass udp sockets

[lixmal]

Describe your changes

This fixes an incompatibility between lazy connections and IP_UNICAST_IF sock opts on windows.

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Checklist

• Is it a bug fix
• Is a typo/documentation fix
• Is a feature enhancement
• It is a refactor
• Created tests that fail without the change (if possible)

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Documentation

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[Copilot]

Pull Request Overview

This PR implements a bind activity listener to bypass UDP sockets and fix incompatibility issues between lazy connections and IP_UNICAST_IF socket options on Windows. The change introduces support for both UDP-based and bind-based activity detection depending on the WireGuard interface mode.

Key changes:

• Adds support for bind-based activity listeners using LazyConn for userspace bind mode
• Refactors existing UDP listener code into separate files for better organization
• Updates interfaces to expose bind providers and WireGuard address information

Reviewed Changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
client/internal/lazyconn/wgiface.go	Adds Address() method to WGIface interface
client/internal/lazyconn/activity/manager.go	Refactors to support both UDP and bind listeners with factory method
client/internal/lazyconn/activity/listener_udp.go	Extracted UDP listener implementation from original listener.go
client/internal/lazyconn/activity/listener_bind.go	New bind listener implementation using LazyConn for userspace mode
client/internal/lazyconn/activity/listener.go	Simplified to factory function and interface definition
client/internal/lazyconn/activity/lazy_conn.go	New LazyConn implementation for activity detection in bind mode
client/iface/*.go	Adds GetICEBind() method to device interfaces across platforms

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud