Minimize D&D NPC extraction contracts

internal/modules/dnd/npcs/identity/identity_test.go

@@ -77,18 +77,13 @@ func TestIdentityFunctionsAreSafeForConcurrentUse(t *testing.T) {
 func TestValidateRegistryReportsIdentityCollisionCategories(t *testing.T) {
 	validID := DeriveID("Mira Thorn")
 	npcs := []dnd.NPC{
-		{ID: validID, Name: "Mira Thorn", Aliases: []string{"The Greencloak", "the greencloak", "Mira Thorn"}},
-		{ID: validID, Name: "Mira Thorn", Aliases: []string{"The Greencloak"}},
-		{ID: DeriveID("Captain Vale"), Name: "Captain Vale", Aliases: []string{"Mira Thorn"}},
+		{ID: validID, Name: "Mira Thorn"},
+		{ID: validID, Name: "Mira Thorn"},
 	}
 	issues := ValidateRegistry(npcs)
 	want := map[IssueCode]bool{
-		IssueDuplicateAlias:          false,
-		IssueOwnCanonicalAlias:       false,
-		IssueDuplicateCanonical:      false,
-		IssueDuplicateID:             false,
-		IssueAliasOwnershipCollision: false,
-		IssueAliasCanonicalCollision: false,
+		IssueDuplicateCanonical: false,
+		IssueDuplicateID:        false,
 	}
 	for _, issue := range issues {
 		if _, ok := want[issue.Code]; ok {