Navigation retains a bounded identity window

Context

Opening a record should allow useful Previous and Next movement despite edits and changes in recently viewed order.

Decision

List navigation retains a bounded window of record identities for the person and queries again when extending or rebuilding that window.

Alternatives Considered

Execute the full list query for every navigation step: Edits could move the current record relative to its neighbors.

Persist every matching identity: Very large lists would require unbounded session storage.

Consequences

Interior navigation retains the stored ordering while record contents may change. Edge extension can alter the window, so the entire result set is not immutable.