dsh-llm-agy: An AGY Agent Enhancement Engine for DeepSeek Harness

flg1217/dsh-llm-agy is an MIT-licensed plugin for DSH designed to extend DSH's capabilities by integrating AGY (Antigravity CLI), enabling seamless upgrades without modifying the dsh source code. The plugin requires Node.js ≥ 20 and dsh >= 0.1.0-rc.6, with the AGY CLI pre-installed. Its core features include: 1. Independent reasoning sub-agents, allowing specific tasks (such as frontend/UI) to be delegated to AGY by setting `agentOptions.provider: 'agy'`, with a `list_agy_models` tool for querying available models; 2. Deep web search, after configuring `searchProvider: agy`, `web