dsh-subagent-antigravity v0.1.0

First release: run the official Google Antigravity CLI (agy) as a one-shot coding subagent in DeepSeek Harness.

• subagent_antigravity delegation tool (provider: antigravity)
• default model gemini-4-argon-medium, configurable effort/mode/model
• headless print-mode stream-json run layer with timeout, cancellation and safe diagnostics
• 34 unit tests, npm run smoke end-to-end check

Install: dsh plugin --profile add dsh-subagent-antigravity (npm, once published) or install from this tarball.