dsh-fingerprint-relay: DSH Local Fingerprint Relay Plugin

The DeepSeek Harness (DSH) plugin `dsh-fingerprint-relay` resolves the issue of DSH being unable to access providers that impose TLS fingerprint restrictions. It runs a local Python process as a relay to forward DSH requests to the target, thereby bypassing the restrictions. This plugin supports only the Windows platform and the Anthropic Messages channel, and the relay listens only on local ports. Users need to install it via a PowerShell script, configure the relay address as `https://agentrouter.org` and port `7187`, route the Anthropic provider to this relay, and restart DSH Desktop for the changes to take effect.