feat: Add validation to prevent empty custom profile attribute options

server/public/model/custom_profile_attributes.go

@@ -66,8 +66,11 @@ func (c CustomProfileAttributesSelectOption) IsValid() error {
 type CustomProfileAttributesSelectOptions []CustomProfileAttributesSelectOption
 
 func (c CustomProfileAttributesSelectOptions) IsValid() error {
-	seenNames := make(map[string]struct{})
+	if len(c) == 0 {
+		return errors.New("options list cannot be empty")
+	}
 
+	seenNames := make(map[string]struct{})
 	for _, option := range c {
 		if err := option.IsValid(); err != nil {
 			return err

server/public/model/custom_profile_attributes_test.go

@@ -101,7 +101,7 @@ func TestCustomProfileAttributesSelectOptionsIsValid(t *testing.T) {
 		{
 			name:    "empty options",
 			options: CustomProfileAttributesSelectOptions{},
-			wantErr: "",
+			wantErr: "options list cannot be empty",
 		},
 		{
 			name: "valid options",