Changes in version 0.99.0                        

  - Represent alternative segmentations of one molecule universe with
    exact IDs, complete cell censuses, and explicit assigned,
    unassigned, and ambiguous statuses.
  - Describe shared-molecule correspondence, categorical cell-state
    stability, directional support sensitivity, optional topology and
    geometry, and agreement among segmentation runs.
  - Support explicit MoleculeExperiment molecule import and keyed
    SpatialFeatureExperiment geometry sidecars when those packages are
    installed.
  - Retrieve a stored partition with set[["name"]], read its keyed
    assignments with assignmentData(set, "name"), and inspect stored
    coordinate declarations with summary(set)$coordinate_info or
    summary(comparison)$coordinate_info.
  - Add a small, source-checked ovrlpy/Xenium validation summary and
    optional development-time replay scripts; no real-data acquisition
    runs during package installation, examples, tests, vignettes, or
    checks.