pinned baseline linear-Gaussian ATE conformance fixture

Suite path: conformance/estimate/linear_gaussian_ate

Generated by scripts/conformance/generate_baseline_linear_gaussian_ate.py

Baseline pin: parity/pinned baseline.toml (pinned baseline 0.14).

Comparison class: StableFloat (ADR 0010).

Expected summary

Top-level keys: adjustment_set, atol, edges, generation, n, outcome, reference, reference_ate, reference_source, rtol, scm, tolerance_class, treatment, true_ate (14 fields).