dsh-antigravity: Integrating Google Antigravity / Cloud Code Assist into DeepSeek Harness

dsh-antigravity is an unofficial DSH Web plugin maintained by LiZhenNet, licensed under the MIT License, designed to integrate Google Antigravity / Cloud Code Assist as a model source for DSH. The plugin registers a DSH LlmAdapter under the provider route `antigravity`, directly connecting to the Cloud Code Assist streaming API, and supports Google OAuth login, account information viewing, quota grouped by model family, and reset times through the DSH Web settings page. Core features include managing models directly in the model selector, with each model displaying