net: Enable local address discovery when bind=0.0.0.0 is used #34484

Motivation

The Discover() function in init.cpp was only being called if bind_on_any was true. However, bind_on_any is set to false if an explicit -bind argument is provided, even if that argument is -bind=0.0.0.0 (which effectively binds to all interfaces).

This behavior prevented local address discovery when a user explicitly configured -bind=0.0.0.0, which is common in containerized environments or when users want to be explicit about interface binding.

Fixes #31293.

Solution

Updated the logic in init.cpp to check if any of the provided bind addresses (either via -bind or -whitebind) are "any" addresses (0.0.0.0 or ::). If so, we enable discovery.

Testing

• Validated that Discover() is called when -bind=0.0.0.0 is used.
• Verified standard behavior (no bind, specific bind) remains unchanged.

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