Effect weight fields should be mutually exclusive

[nebfield]

re: PGS002253 discussions

pygscatalog/pgscatalog.core/src/pgscatalog/core/lib/models.py

Lines 595 to 608 in e8abd3f

	@model_validator(mode="after")
	def check_effect_weights(self) -> Self:
	match (
	self.effect_weight,
	self.dosage_0_weight,
	self.dosage_1_weight,
	self.dosage_2_weight,
	):
	case None, None, None, None:
	raise ValueError("All effect weight fields are missing")
	case None, zero, one, two if any(x is None for x in (zero, one, two)):
	raise ValueError("Dosage missing effect weight")
	case _:
	return self

If effect_weight and dosage_0... columns are both present, a ValueError should be raised in the CatalogScoreVariant model, right @smlmbrt ?