[FEATURE] Make TCP server bind address configurable #212

Feature Description

Currently the bind address is hard coded to 127.0.0.1. If Claude Code is executed inside a container for example it cannot reach the websocket server.

Use Case

Describe the context or use case for this feature. How would it benefit you and others?

Some companies such as the company I currently work for do not allow running Claude Code locally and enforce running it inside containers. Adding this configuration will allow using the plugin in such cases

Proposed Solution

Adding bind_address to the plugin config and replacing the hard coded value. Default will remain 127.0.0.1 for security reasons.