Update D&D schemas to require integer unit_id values

internal/modules/extract/dnd/spells/test_helpers_test.go

@@ -6,6 +6,7 @@ import (
 
 	"gitea.maximumdirect.net/eric/notarius/internal/core/source"
 	"gitea.maximumdirect.net/eric/notarius/internal/framework/contracts"
+	"gitea.maximumdirect.net/eric/notarius/internal/modules/sharedassets/dnd"
 )
 
 func promptExtractionRequest() contracts.ExtractionRequest {
@@ -59,3 +60,23 @@ func mustJSON(t *testing.T, value any) string {
 	}
 	return string(encoded)
 }
+
+func responseSourceRefs(sourceID string, startUnitID string, endUnitID string) []dnd.SourceRefResponse {
+	return []dnd.SourceRefResponse{
+		{
+			SourceID:    sourceID,
+			StartUnitID: dnd.UnitRefFromString(startUnitID),
+			EndUnitID:   dnd.UnitRefFromString(endUnitID),
+		},
+	}
+}
+
+func responseSourceRefsInt(sourceID string, startUnitID int, endUnitID int) []dnd.SourceRefResponse {
+	return []dnd.SourceRefResponse{
+		{
+			SourceID:    sourceID,
+			StartUnitID: dnd.UnitRefFromInt(startUnitID),
+			EndUnitID:   dnd.UnitRefFromInt(endUnitID),
+		},
+	}
+}