fix: trailing whitespace + 代码格式整理

backend/src/test/java/com/yimeng/okr/service/PerformanceServiceTest.java

@@ -256,7 +256,9 @@ class PerformanceServiceTest {
 
     private AssessmentPeriod period() {
         AssessmentPeriod period = new AssessmentPeriod();
-        period.setId(1L); period.setStartDate(java.time.LocalDate.of(2026,1,1)); period.setEndDate(java.time.LocalDate.of(2026,12,31));
+        period.setId(1L);
+        period.setStartDate(java.time.LocalDate.of(2026, 1, 1));
+        period.setEndDate(java.time.LocalDate.of(2026, 12, 31));
         period.setStatus(PeriodStatus.ASSESSING);
         return period;
     }
@@ -339,7 +341,8 @@ class PerformanceServiceTest {
 
     @Test
     void hrCanSeeAllItems() {
-        setupPrivacyMocks(1L, 2L, 99L, "SELF_SUBMITTED", "PUBLISHED"); when(authorizationService.isHrOrAbove(99L)).thenReturn(true);
+        setupPrivacyMocks(1L, 2L, 99L, "SELF_SUBMITTED", "PUBLISHED");
+        when(authorizationService.isHrOrAbove(99L)).thenReturn(true);
 
         ScoringDto dto = performanceService.getScoringPage(1L, 2L, 99L);
 
@@ -360,7 +363,7 @@ class PerformanceServiceTest {
         assertNotNull(dto.getSelfScore(), "Self can see their self score");
     }
 
-    private void setupPrivacyMocks(Long periodId, Long userId, Long actorId, 
+    private void setupPrivacyMocks(Long periodId, Long userId, Long actorId,
                                     String selfStatus, String finalStatus) {
         lenient().when(periodMapper.selectById(periodId)).thenReturn(period());
         SysUser targetUser = user(userId, 3L);