@Nested
    @DisplayName("Target Model Version Determination")
    class TargetModelVersionTests {

        @Test
        @DisplayName("should use explicit model version when provided")
        void shouldUseExplicitModelVersionWhenProvided() {
            UpgradeContext context = createMockContext(tempDir, TestUtils.createOptionsWithModelVersion("4.1.0"));
            String result = upgradeGoal.testDoUpgradeLogic(context, "4.1.0");