Manual Point Spec
@Serializable
One design point in a DesignSpec.Manual design.
factorValues maps each factor's name to its raw value at this point. Every factor in the document must appear; submit-time validation enforces this (the keys must match the document's factors[*].name set).
replications overrides the document-level ReplicationSpec for this single point; null (the default) means the document-level value applies. Per-point overrides are typical for CCD-style centre-point augmentation in a Manual design.