/**
 * v5.6 B2 added a load-pattern triple (loadPattern / survivesCompaction /
 * derivationConfidence) to each TOK hotspot. The frozen v5.0.0 byte-equal
 * baselines strip it before comparison so they still prove the ORIGINAL schema
 * is byte-identical; the new fields are purely additive.
 *
 * TOK hotspots ride along inside scan-orchestrator and posture payloads too
 * (`scanners[].hotspots`, `scannerEnvelope.scanners[].hotspots`), so this
 * strips every hotspots array reachable in a CLI payload / envelope. Mutates
 * in place and returns the payload for chaining inside a normalizer.
 *
 * @template T
 * @param {T} payload
 * @returns {T}
 */
export function stripHotspotLoadPattern(payload) {
  const drop = (arr) => {
    if (!Array.isArray(arr)) return;
    for (const h of arr) {
      delete h.loadPattern;
      delete h.survivesCompaction;
      delete h.derivationConfidence;
    }
  };
  if (!payload || typeof payload !== 'object') return payload;
  drop(payload.hotspots);
  if (Array.isArray(payload.scanners)) {
    for (const s of payload.scanners) drop(s.hotspots);
  }
  if (payload.scannerEnvelope) {
    drop(payload.scannerEnvelope.hotspots);
    if (Array.isArray(payload.scannerEnvelope.scanners)) {
      for (const s of payload.scannerEnvelope.scanners) drop(s.hotspots);
    }
  }
  return payload;
}