Function load_run_artifact 

pub fn load_run_artifact(
    path: &Path,
) -> Result<LoadedArtifact, ArtifactLoadError>

Loads and validates a tailtriage run artifact from disk.

Validation is strict:

• top-level schema_version must exist and match this binary exactly
• the decoded artifact must include at least one request event

Loader warnings are non-fatal findings and are returned in LoadedArtifact::warnings.

Errors

Returns ArtifactLoadError when the file cannot be read, the JSON is malformed, the schema is unsupported, or required sections are missing.