Classify exact overlap and containment for every minimal repair pair

Extends the robust-repair consequence and distinction audits with exact set relations for every unordered pair of returned inclusion-minimal cross-grid repairs. Each pair is classified as disjoint, left strictly contained, right strictly contained, or overlapping incomparable across all evaluable grid/sample observations, with reduced exact overlap fractions, exact intersection/exclusivity/union counts, grid references, and the first deterministic shared and directional-exclusive witnesses when they exist. SHA-256 consequence fingerprints do not decide overlap. It does not rank repairs or apply criterion weights. Results are exact for returned samples, not continuous-time proofs, causal claims, quality scores, recommendations, interpretations, predictions, probabilities, or statistical confidence. No licensed catalog, new dependency, or request-time network source is used. One standard quota unit per admitted request; failed or timed-out admitted attempts are not refunded. Do not automatically retry. Historical mode uses an explicit BCE/CE date object and UT1 conventions. Its response is the versioned historical envelope, not the modern UTC envelope. Read result for calculation fields and metadata for limits and uncertainty.