dsh-remote-mobile: Securely Expose LAN and Tailscale Connections Without Modifying DSH's Underlying Code

`dsh-remote-mobile` is a secure gateway plugin developed by IceApriler, designed to address the issue that DeepSeek Harness only listens on the local loopback address by default. Without modifying the underlying code, it uses middleware and encryption techniques (supporting Tailscale, local network access, QR code pairing, and RSA encryption) to provide secure external access for DSH, while also offering a mobile-friendly interface. During installation, the configuration file must be modified to bind to `0.0.0.0`; after startup, users can pair and access it by scanning a QR code.