Add jupyterjazz/git-agent

[computer-agent]

Adds git-agent by @jupyterjazz to the Open GAP registry.

Repo: https://github.com/jupyterjazz/git-agent
What it does: Natural-language Git CLI agent — stage files, inspect diffs, and restore changes in plain English via LangChain + OpenAI function calling.
Category: developer-tools
Tags: git, cli, langchain, openai, developer-tools, natural-language, version-control
License: MIT | Model: gpt-3.5-turbo

ℹ️ Note on CI: The companion PR adding agent.yaml + SOUL.md to the target repo is open at jupyterjazz/git-agent#2. The registry CI check that clones the repo and validates those files will pass once that PR is merged by the maintainer. This registry PR can be reviewed and kept open until then — the entry is ready to land as soon as the upstream merge happens.

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⭐ If GAP looks useful to you, the project lives at https://github.com/open-gitagent/opengap — a star helps more maintainers find the standard.