Add scripts/benchmark_fact_comparisons.py and docs/schema/benchmark-comparisons-v1.schema.json to group repetitions by effective implementation, capability, scope, cache, host, harness, terminology, and correctness contracts.
Emit elapsed ratios only for parity_manifest_and_contract_v1 pairs; emit capability differences without ratios for capability_delta_manifest_v1 pairs; preserve source run and occurrence IDs and outer lifecycle wall-time rows.
Extend fact_result_rows() with graph, freshness, and retrieval-quality outcomes and append generated comparison artifacts from generate_report(). Retained reports without fact bundles remain readable and report comparison status as unavailable.
Define the versioned join and formula IDs in benchmark terminology 1.1.0. Verified 198 passed, 1 skipped, and 34 subtests; Draft 2020-12 schema validation, Ruff, source-safety, and git diff checks pass.
Signed-off-by: Andrew Hundt <ATHundt@gmail.com>
Andrew Hundt
c1e2ba1472