build_manifest_git() was called with the CLI's cwd, which detects the
wrong repo/branch when fabro is invoked from a workspace directory that
differs from the target repo (e.g. via `[run] working_dir = "repos/foo"`
in .fabro/project.toml). Now resolve working_directory once in
build_run_manifest, share it with resolve_manifest_goal (dropping the
duplicate resolution), and pass it to build_manifest_git.
Also rename the build_manifest_git parameter from `cwd` to `repo_path`
to reflect that it now receives the resolved working directory.
Add a regression test that spins up a workspace git repo and a
separate target git repo beneath it, points `[run] working_dir` at the
target, and asserts the manifest's git branch and origin come from the
target repo.
Ports https://github.com/durandom/fabro/pull/2 to the post-v2-schema
code (Settings -> SettingsLayer).
Closes#159
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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