Introduction to the DeepSeek Harness LAN Password Access Control Plugin

`dsh-lan-gate` is a security plugin for DeepSeek Harness (DSH) designed to address the limitation of the default Web interface binding only to the local loopback address. By modifying the configuration to set the listening address to `0.0.0.0`, it enables access from the local area network while providing password protection, CIDR whitelist restrictions, and security mechanisms that reject proxy headers. The plugin requires users to first initialize the password on the local loopback address, after which LAN access must be authenticated. Because it does not provide TLS encryption, this plugin is intended only for internal network environments.