Function serve_resolved 

pub fn serve_resolved(
    socket: &Path,
    manifest: Manifest,
    read_only: bool,
    governing: Option<&Path>,
) -> Result<(), ServerError>

serve_at, with the governing manifest named explicitly (F73 phase 3).

governing is the path resolution actually settled on — under PUSHKIN_MANIFEST it is not under the watch root at all, and from a subdirectory it is not the watch root’s own pushkin.toml. Only that file reloads. None keeps the historical default of the watch root’s manifest, which is what the in-crate callers and their suites mean.

Resolution stays in the CLI: this crate has no git and no environment knowledge, and giving it any would put two answers to “which manifest” in the tree — the F73 defect wearing a different hat.

Errors

Io when the socket cannot be created/bound; Protocol when the runtime cannot be built.