Summary

Users may expect daf git new to propose the repository's default branch, but this command creates an analysis-only GitHub/GitLab issue session and intentionally does not create or select a branch. Default source-branch selection is part of the development workflows (daf new and daf open).

Motivation

The command name and the fact that it starts from a repository can make the branch behavior unclear. Users should be able to tell whether they want an analysis-only issue-creation session or a development session that creates a branch from the repository default.

Proposed Solution

Make the distinction more visible in daf git new help and the relevant workflow documentation. Explain that no branch picker is shown for this analysis-only workflow, and point users to daf new / daf open for development-session branch selection. Keep the current analysis-only behavior unless branch creation is explicitly redesigned.

Acceptance Criteria

• daf git new --help or its command documentation explicitly says that it does not create or select a branch.
• The documentation points users to the development workflow for default-branch selection.
• The analysis-only behavior of GitHub/GitLab issue-creation sessions remains clear and unchanged.

Related: #638 and #660 (default source-branch selection and picker behavior).