Compares two partition→rollup maps and reports which partitions diverge. Only changed/added/
removed partitions need a deep re-sync; partitions whose rollup matches on both sides are proven
identical and can be skipped entirely. The result arrays are sorted for deterministic output.
Compares two partition→rollup maps and reports which partitions diverge. Only
changed/added/removedpartitions need a deep re-sync; partitions whose rollup matches on both sides are proven identical and can be skipped entirely. The result arrays are sorted for deterministic output.changed— key in BOTH maps, rollup values differ.added— key inlocalonly.removed— key inremoteonly.