pub fn load_tool_labels(
car_dir: impl AsRef<Path>,
) -> Result<ToolLabelConfig, FlowLoadError>Expand description
Load tool labels for a project, merging .car/tool-labels.json with the
built-in defaults.
car_dir is the project’s .car directory; this reads
car_dir/tool-labels.json if present. Built-in labels are the base;
project labels can add new tools or strengthen built-ins, but cannot weaken
built-in sinks, capabilities, taint sources, trust labels, or enforcement
defaults. A missing file is not an error (returns builtins + default
policies); a malformed file is an error.