diff --git a/RuoYi-Vue/ruoyi-train/src/test/java/com/ruoyi/train/service/impl/AttendanceActionContractTest.java b/RuoYi-Vue/ruoyi-train/src/test/java/com/ruoyi/train/service/impl/AttendanceActionContractTest.java
index f2a514e70..abfa95a40 100644
--- a/RuoYi-Vue/ruoyi-train/src/test/java/com/ruoyi/train/service/impl/AttendanceActionContractTest.java
+++ b/RuoYi-Vue/ruoyi-train/src/test/java/com/ruoyi/train/service/impl/AttendanceActionContractTest.java
@@ -196,16 +196,18 @@ public class AttendanceActionContractTest
         lesson.setPlanCourseId(10L);
         lessons.put(1001L, lesson);
 
-        // 学员 E_A 属于 PLAN_A
+        // 学员 E_A 属于 PLAN_A (1:已报到在训)
         TrainEnrollment ea = new TrainEnrollment();
         ea.setEnrollmentId(201L);
         ea.setPlanId("PLAN_A");
+        ea.setEnrollmentStatus(1);
         enrollments.put(201L, ea);
 
-        // 学员 E_B 属于 PLAN_B (跨班)
+        // 学员 E_B 属于 PLAN_B (跨班, 1:已报到在训)
         TrainEnrollment eb = new TrainEnrollment();
         eb.setEnrollmentId(202L);
         eb.setPlanId("PLAN_B");
+        eb.setEnrollmentStatus(1);
         enrollments.put(202L, eb);
     }
 
@@ -594,4 +596,227 @@ public class AttendanceActionContractTest
             assertEquals(AttendanceErrorCode.LESSON_NOT_FOUND, (int) e.getCode());
         }
     }
+
+    @Test
+    public void testSignInLifecycle_Status0_WaitingReport_Rejected()
+    {
+        // status=0 待报到学员：严禁直接签到绕过报到生命周期
+        TrainEnrollment e0 = new TrainEnrollment();
+        e0.setEnrollmentId(300L);
+        e0.setPlanId("PLAN_A");
+        e0.setEnrollmentStatus(0); // 0: 待报到
+        enrollments.put(300L, e0);
+
+        AttendanceSignInDTO dto = new AttendanceSignInDTO();
+        dto.setEnrollmentId(300L);
+        dto.setLessonId(1001L);
+
+        try
+        {
+            appService.signIn(dto, "admin");
+            fail("待报到学员必须被拦截禁止签到");
+        }
+        catch (ServiceException e)
+        {
+            assertEquals(AttendanceErrorCode.ATTENDANCE_SIGN_IN_REQUIRES_REPORTED_ENROLLMENT, (int) e.getCode());
+            assertEquals(AttendanceErrorCode.ATTENDANCE_SIGN_IN_REQUIRES_REPORTED_ENROLLMENT_MESSAGE, e.getMessage());
+        }
+        // 保证无任何写产生
+        assertNull(checkinsByEnrollLesson.get("300_1001"));
+    }
+
+    @Test
+    public void testSignInLifecycle_Status1_Reported_Allowed()
+    {
+        // status=1 已报到学员：允许签到
+        TrainEnrollment e1 = new TrainEnrollment();
+        e1.setEnrollmentId(301L);
+        e1.setPlanId("PLAN_A");
+        e1.setEnrollmentStatus(1); // 1: 已报到
+        enrollments.put(301L, e1);
+
+        AttendanceSignInDTO dto = new AttendanceSignInDTO();
+        dto.setEnrollmentId(301L);
+        dto.setLessonId(1001L);
+
+        TrainStudentCheckin c = appService.signIn(dto, "admin");
+        assertNotNull(c);
+        assertNotNull(c.getSignInTime());
+        assertEquals(Integer.valueOf(1), c.getAttendanceStatus());
+    }
+
+    @Test
+    public void testSignInLifecycle_Status2_Leave_Allowed_PreviewDefault()
+    {
+        // status=2 请假学员：Preview Default 允许签到 (LEAVE_SIGNIN_POLICY: PREVIEW_DEFAULT_ALLOWED)
+        TrainEnrollment e2 = new TrainEnrollment();
+        e2.setEnrollmentId(302L);
+        e2.setPlanId("PLAN_A");
+        e2.setEnrollmentStatus(2); // 2: 请假
+        enrollments.put(302L, e2);
+
+        AttendanceSignInDTO dto = new AttendanceSignInDTO();
+        dto.setEnrollmentId(302L);
+        dto.setLessonId(1001L);
+
+        TrainStudentCheckin c = appService.signIn(dto, "admin");
+        assertNotNull(c);
+        assertNotNull(c.getSignInTime());
+        assertEquals(Integer.valueOf(1), c.getAttendanceStatus());
+    }
+
+    @Test
+    public void testSignInLifecycle_Status3_Abandoned_Rejected()
+    {
+        // status=3 放弃学员：严禁直接签到
+        TrainEnrollment e3 = new TrainEnrollment();
+        e3.setEnrollmentId(303L);
+        e3.setPlanId("PLAN_A");
+        e3.setEnrollmentStatus(3); // 3: 放弃
+        enrollments.put(303L, e3);
+
+        AttendanceSignInDTO dto = new AttendanceSignInDTO();
+        dto.setEnrollmentId(303L);
+        dto.setLessonId(1001L);
+
+        try
+        {
+            appService.signIn(dto, "admin");
+            fail("已放弃学员必须被拦截禁止签到");
+        }
+        catch (ServiceException e)
+        {
+            assertEquals(AttendanceErrorCode.ATTENDANCE_SIGN_IN_ENROLLMENT_ABANDONED, (int) e.getCode());
+            assertEquals(AttendanceErrorCode.ATTENDANCE_SIGN_IN_ENROLLMENT_ABANDONED_MESSAGE, e.getMessage());
+        }
+        assertNull(checkinsByEnrollLesson.get("303_1001"));
+    }
+
+    @Test
+    public void testSignInLifecycle_Status4_Completed_Rejected()
+    {
+        // status=4 已完成学员：严禁直接签到
+        TrainEnrollment e4 = new TrainEnrollment();
+        e4.setEnrollmentId(304L);
+        e4.setPlanId("PLAN_A");
+        e4.setEnrollmentStatus(4); // 4: 已完成
+        enrollments.put(304L, e4);
+
+        AttendanceSignInDTO dto = new AttendanceSignInDTO();
+        dto.setEnrollmentId(304L);
+        dto.setLessonId(1001L);
+
+        try
+        {
+            appService.signIn(dto, "admin");
+            fail("已结训学员必须被拦截禁止签到");
+        }
+        catch (ServiceException e)
+        {
+            assertEquals(AttendanceErrorCode.ATTENDANCE_SIGN_IN_ENROLLMENT_COMPLETED, (int) e.getCode());
+            assertEquals(AttendanceErrorCode.ATTENDANCE_SIGN_IN_ENROLLMENT_COMPLETED_MESSAGE, e.getMessage());
+        }
+        assertNull(checkinsByEnrollLesson.get("304_1001"));
+    }
+
+    @Test
+    public void testSignInLifecycle_UnknownOrNullStatus_Rejected()
+    {
+        // 未知或 null 参训状态：fail closed 严禁签到
+        TrainEnrollment eNull = new TrainEnrollment();
+        eNull.setEnrollmentId(305L);
+        eNull.setPlanId("PLAN_A");
+        eNull.setEnrollmentStatus(null);
+        enrollments.put(305L, eNull);
+
+        AttendanceSignInDTO dto = new AttendanceSignInDTO();
+        dto.setEnrollmentId(305L);
+        dto.setLessonId(1001L);
+
+        try
+        {
+            appService.signIn(dto, "admin");
+            fail("null 状态学员必须被 fail closed 拦截");
+        }
+        catch (ServiceException e)
+        {
+            assertEquals(AttendanceErrorCode.ATTENDANCE_SIGN_IN_ENROLLMENT_STATUS_INVALID, (int) e.getCode());
+        }
+
+        // 状态 99
+        eNull.setEnrollmentStatus(99);
+        try
+        {
+            appService.signIn(dto, "admin");
+            fail("非法状态 99 学员必须被拦截");
+        }
+        catch (ServiceException e)
+        {
+            assertEquals(AttendanceErrorCode.ATTENDANCE_SIGN_IN_ENROLLMENT_STATUS_INVALID, (int) e.getCode());
+        }
+    }
+
+    @Test
+    public void testSignInLifecycle_Status4_WithExistingCheckin_IdempotentRetainsFact()
+    {
+        // 场景：历史已经合法签到的学员，后来结训归档变为 status=4。重复调用 signIn 保持幂等返回已有事实，不产生新写
+        TrainEnrollment e4 = new TrainEnrollment();
+        e4.setEnrollmentId(306L);
+        e4.setPlanId("PLAN_A");
+        e4.setEnrollmentStatus(4); // 4: 已完成
+        enrollments.put(306L, e4);
+
+        TrainStudentCheckin historical = new TrainStudentCheckin();
+        historical.setCheckinId(6001L);
+        historical.setEnrollmentId(306L);
+        historical.setLessonId(1001L);
+        Date historicalTime = new Date(System.currentTimeMillis() - 86400000L);
+        historical.setSignInTime(historicalTime);
+        historical.setAttendanceStatus(1);
+        checkinsById.put(6001L, historical);
+        checkinsByEnrollLesson.put("306_1001", historical);
+
+        AttendanceSignInDTO dto = new AttendanceSignInDTO();
+        dto.setEnrollmentId(306L);
+        dto.setLessonId(1001L);
+
+        TrainStudentCheckin returned = appService.signIn(dto, "admin");
+        assertNotNull(returned);
+        assertEquals(Long.valueOf(6001L), returned.getCheckinId());
+        assertEquals(historicalTime, returned.getSignInTime());
+    }
+
+    @Test
+    public void testRosterLifecycleEligibility_Status0And4_CannotSignIn_Status1And2_CanSignIn()
+    {
+        // 测试名册对于 status 0, 1, 2, 4 的 canSignIn 权限对齐：
+        // 310 (status=0 待报到), 311 (status=1 已报到), 312 (status=2 请假), 314 (status=4 已完成)
+        enrollments.clear();
+        checkinsById.clear();
+        checkinsByEnrollLesson.clear();
+
+        TrainEnrollment e0 = new TrainEnrollment(); e0.setEnrollmentId(310L); e0.setPlanId("PLAN_A"); e0.setEnrollmentStatus(0); enrollments.put(310L, e0);
+        TrainEnrollment e1 = new TrainEnrollment(); e1.setEnrollmentId(311L); e1.setPlanId("PLAN_A"); e1.setEnrollmentStatus(1); enrollments.put(311L, e1);
+        TrainEnrollment e2 = new TrainEnrollment(); e2.setEnrollmentId(312L); e2.setPlanId("PLAN_A"); e2.setEnrollmentStatus(2); enrollments.put(312L, e2);
+        TrainEnrollment e4 = new TrainEnrollment(); e4.setEnrollmentId(314L); e4.setPlanId("PLAN_A"); e4.setEnrollmentStatus(4); enrollments.put(314L, e4);
+
+        List<com.ruoyi.train.domain.vo.AttendanceLessonRosterVO> roster = appService.getLessonRoster(1001L);
+        assertEquals(4, roster.size());
+
+        com.ruoyi.train.domain.vo.AttendanceLessonRosterVO r0 = roster.stream().filter(r -> r.getEnrollmentId().equals(310L)).findFirst().orElse(null);
+        assertNotNull(r0);
+        assertFalse("status=0 待报到学员名册 canSignIn 必须为 false", Boolean.TRUE.equals(r0.getCanSignIn()));
+
+        com.ruoyi.train.domain.vo.AttendanceLessonRosterVO r1 = roster.stream().filter(r -> r.getEnrollmentId().equals(311L)).findFirst().orElse(null);
+        assertNotNull(r1);
+        assertTrue("status=1 已报到学员名册 canSignIn 必须为 true", Boolean.TRUE.equals(r1.getCanSignIn()));
+
+        com.ruoyi.train.domain.vo.AttendanceLessonRosterVO r2 = roster.stream().filter(r -> r.getEnrollmentId().equals(312L)).findFirst().orElse(null);
+        assertNotNull(r2);
+        assertTrue("status=2 请假学员名册 canSignIn 必须为 true (Preview Default)", Boolean.TRUE.equals(r2.getCanSignIn()));
+
+        com.ruoyi.train.domain.vo.AttendanceLessonRosterVO r4 = roster.stream().filter(r -> r.getEnrollmentId().equals(314L)).findFirst().orElse(null);
+        assertNotNull(r4);
+        assertFalse("status=4 已结训学员名册 canSignIn 必须为 false", Boolean.TRUE.equals(r4.getCanSignIn()));
+    }
 }
diff --git a/build_ui/tests/unit/attendanceSigninEntry.spec.mjs b/build_ui/tests/unit/attendanceSigninEntry.spec.mjs
index 58d240dc9..017ecaede 100644
--- a/build_ui/tests/unit/attendanceSigninEntry.spec.mjs
+++ b/build_ui/tests/unit/attendanceSigninEntry.spec.mjs
@@ -1,29 +1,15 @@
 import assert from 'node:assert';
+import {
+  formatAttendanceTag,
+  formatEnrollmentStatusTag,
+  isEnrollmentEligibleForSignIn,
+  computeRosterActionEligibility,
+  resolveSignInFeedback
+} from '../../src/views/train/checkin/attendancePolicy.js';
 
-console.log('=== Testing Attendance Sign-in Entry & Roster Semantics ===');
+console.log('=== Testing Real Production Attendance Policy Helper ===');
 
-// 1. 测试考勤状态语义映射：未签到 (NO_CHECKIN) 必须严格与缺勤 (0) 区分
-function formatAttendanceTag(status) {
-  if (status === null || status === undefined) {
-    return { text: '未签到', type: 'info' };
-  }
-  switch (status) {
-    case 0:
-      return { text: '缺勤', type: 'danger' };
-    case 1:
-      return { text: '正常', type: 'success' };
-    case 2:
-      return { text: '迟到', type: 'warning' };
-    case 3:
-      return { text: '早退', type: 'warning' };
-    case 4:
-      return { text: '请假', type: 'primary' };
-    default:
-      return { text: '-', type: '' };
-  }
-}
-
-// A. 验证未打卡学员渲染为“未签到”，绝不等于“缺勤”
+// 1. 考勤状态语义映射：未签到 (NO_CHECKIN) 必须严格与缺勤 (0) 区分
 {
   const tagNull = formatAttendanceTag(null);
   assert.strictEqual(tagNull.text, '未签到');
@@ -31,160 +17,142 @@ function formatAttendanceTag(status) {
 
   const tagUndefined = formatAttendanceTag(undefined);
   assert.strictEqual(tagUndefined.text, '未签到');
+  assert.strictEqual(tagUndefined.type, 'info');
 
   const tagAbsent = formatAttendanceTag(0);
   assert.strictEqual(tagAbsent.text, '缺勤');
   assert.strictEqual(tagAbsent.type, 'danger');
 
-  // 红线：未签到和缺勤完全不同
+  // 严格区分未签到与缺勤事实
   assert.notStrictEqual(tagNull.text, tagAbsent.text);
   assert.notStrictEqual(tagNull.type, tagAbsent.type);
-  console.log('✔ PASS: NO_CHECKIN is strictly distinct from ABSENT (0)');
+  console.log('✔ PASS: Production formatAttendanceTag distinguishes NO_CHECKIN from ABSENT (0)');
 }
 
-// 2. 按钮可见性与防重复规则
-function getRowActionButtons(row) {
-  return {
-    signIn: !!row.canSignIn,
-    signOut: !!row.canSignOut,
-    adjust: !!row.canAdjust
-  };
-}
-
-// A. 无 checkin 记录学员：签到按钮可见，签退不可见
+// 2. 学员参训状态展示标签
 {
-  const uncheckRow = {
-    enrollmentId: 101,
+  assert.strictEqual(formatEnrollmentStatusTag(0).text, '待报到');
+  assert.strictEqual(formatEnrollmentStatusTag(1).text, '已报到');
+  assert.strictEqual(formatEnrollmentStatusTag(2).text, '请假');
+  assert.strictEqual(formatEnrollmentStatusTag(3).text, '放弃');
+  assert.strictEqual(formatEnrollmentStatusTag(4).text, '已完成');
+  console.log('✔ PASS: Production formatEnrollmentStatusTag maps all lifecycle statuses correctly');
+}
+
+// 3. 参训生命周期首次签到资格规则断言
+{
+  assert.strictEqual(isEnrollmentEligibleForSignIn(0), false, 'status=0 待报到严禁签到');
+  assert.strictEqual(isEnrollmentEligibleForSignIn(1), true, 'status=1 已报到在训允许签到');
+  assert.strictEqual(isEnrollmentEligibleForSignIn(2), true, 'status=2 请假学员当前 Preview Default 允许签到');
+  assert.strictEqual(isEnrollmentEligibleForSignIn(3), false, 'status=3 放弃学员严禁签到');
+  assert.strictEqual(isEnrollmentEligibleForSignIn(4), false, 'status=4 已完成学员严禁签到');
+  assert.strictEqual(isEnrollmentEligibleForSignIn(null), false, 'null 状态 fail closed');
+  assert.strictEqual(isEnrollmentEligibleForSignIn(undefined), false, 'undefined 状态 fail closed');
+  assert.strictEqual(isEnrollmentEligibleForSignIn(99), false, '未知状态 fail closed');
+  console.log('✔ PASS: Production isEnrollmentEligibleForSignIn strictly enforces lifecycle guard');
+}
+
+// 4. 生产环境操作按钮可用性 (computeRosterActionEligibility) 覆盖
+{
+  // A. status=0 待报到 + 无打卡记录 -> 签到按钮不存在
+  const row0 = {
+    enrollmentId: 100,
+    enrollmentStatus: 0,
     checkinId: null,
     attendanceStatus: null,
     signInTime: null,
     signOutTime: null,
-    canSignIn: true,
-    canSignOut: false,
-    canAdjust: false
+    canSignIn: false
   };
-  const actions = getRowActionButtons(uncheckRow);
-  assert.strictEqual(actions.signIn, true, '无签到记录学员签到按钮必须可见');
-  assert.strictEqual(actions.signOut, false, '未签到学员不能显示签退');
-  assert.strictEqual(actions.adjust, false, '无考勤记录学员不能显示调整');
-  console.log('✔ PASS: Unchecked student has visible signIn button, no duplicate path');
-}
+  const act0 = computeRosterActionEligibility(row0);
+  assert.strictEqual(act0.canSignIn, false, 'status=0 待报到学员签到按钮必须不存在');
+  assert.strictEqual(act0.canSignOut, false);
+  assert.strictEqual(act0.canAdjust, false);
 
-// B. 已有签到记录：签到按钮不可重复执行
-{
-  const signedInRow = {
+  // B. status=1 已报到 + NO_CHECKIN -> 签到按钮存在
+  const row1 = {
     enrollmentId: 101,
-    checkinId: 8001,
+    enrollmentStatus: 1,
+    checkinId: null,
+    attendanceStatus: null,
+    signInTime: null,
+    signOutTime: null,
+    canSignIn: true
+  };
+  const act1 = computeRosterActionEligibility(row1);
+  assert.strictEqual(act1.canSignIn, true, 'status=1 已报到学员未签到时签到按钮必须存在');
+  assert.strictEqual(act1.canSignOut, false);
+  assert.strictEqual(act1.canAdjust, false);
+
+  // C. status=2 请假 + NO_CHECKIN -> 签到按钮存在 (Preview Default)
+  const row2 = {
+    enrollmentId: 102,
+    enrollmentStatus: 2,
+    checkinId: null,
+    attendanceStatus: null,
+    signInTime: null,
+    signOutTime: null,
+    canSignIn: true
+  };
+  const act2 = computeRosterActionEligibility(row2);
+  assert.strictEqual(act2.canSignIn, true, 'status=2 请假学员未签到时签到按钮必须存在 (Preview Default)');
+  assert.strictEqual(act2.canSignOut, false);
+  assert.strictEqual(act2.canAdjust, false);
+
+  // D. status=4 已完成 + NO_CHECKIN -> 签到按钮不存在
+  const row4 = {
+    enrollmentId: 104,
+    enrollmentStatus: 4,
+    checkinId: null,
+    attendanceStatus: null,
+    signInTime: null,
+    signOutTime: null,
+    canSignIn: false
+  };
+  const act4 = computeRosterActionEligibility(row4);
+  assert.strictEqual(act4.canSignIn, false, 'status=4 已完成学员签到按钮必须不存在');
+  assert.strictEqual(act4.canSignOut, false);
+  assert.strictEqual(act4.canAdjust, false);
+
+  // E. 已有合法签到记录 (无论 status 为何) -> 签到按钮禁止重复存在
+  const rowSignedIn = {
+    enrollmentId: 101,
+    enrollmentStatus: 1,
+    checkinId: 8888,
     attendanceStatus: 1,
-    signInTime: '2026-09-21 08:30:00',
+    signInTime: '2026-09-22 08:30:00',
     signOutTime: null,
     canSignIn: false,
     canSignOut: true,
     canAdjust: true
   };
-  const actions = getRowActionButtons(signedInRow);
-  assert.strictEqual(actions.signIn, false, '已有合法签到记录学员不得显示签到按钮');
-  assert.strictEqual(actions.signOut, true, '已签到学员允许签退');
-  assert.strictEqual(actions.adjust, true, '已有打卡记录允许人工调整');
-  console.log('✔ PASS: Signed-in student cannot duplicate sign-in');
+  const actSigned = computeRosterActionEligibility(rowSignedIn);
+  assert.strictEqual(actSigned.canSignIn, false, '已签到学员绝对不能再次显示签到按钮');
+  assert.strictEqual(actSigned.canSignOut, true, '已签到未签退学员激活签退');
+  assert.strictEqual(actSigned.canAdjust, true, '已有打卡记录激活调整');
+  console.log('✔ PASS: Production computeRosterActionEligibility covers all status button visibility');
 }
 
-// 3. 模拟 signIn 闭环与名册状态刷新
+// 5. 后端生命周期报错反馈解析真实性 (resolveSignInFeedback)
 {
-  // 初始名册
-  let roster = [
-    {
-      enrollmentId: 201,
-      studentName: '张三',
-      checkinId: null,
-      attendanceStatus: null,
-      signInTime: null,
-      signOutTime: null,
-      canSignIn: true,
-      canSignOut: false,
-      canAdjust: false
-    }
-  ];
+  const errWaiting = { code: 40085, msg: '学员尚未完成开班报到，禁止录入课次考勤' };
+  const fbWaiting = resolveSignInFeedback(errWaiting, '张三');
+  assert.strictEqual(fbWaiting.isSuccess, false);
+  assert.strictEqual(fbWaiting.message.includes('学员尚未完成开班报到'), true);
+  assert.strictEqual(fbWaiting.message.includes('成功'), false);
 
-  assert.strictEqual(roster[0].canSignIn, true);
-  assert.strictEqual(roster[0].attendanceStatus, null);
+  const errCompleted = { code: 40087, msg: '学员参训档案已结训完成，禁止录入课次考勤' };
+  const fbCompleted = resolveSignInFeedback(errCompleted, '李四');
+  assert.strictEqual(fbCompleted.isSuccess, false);
+  assert.strictEqual(fbCompleted.message.includes('学员参训档案已结训完成'), true);
+  assert.strictEqual(fbCompleted.message.includes('成功'), false);
 
-  // 模拟执行 signIn 成功
-  function mockSignIn(enrollmentId, lessonId) {
-    return Promise.resolve({
-      checkinId: 5001,
-      enrollmentId: enrollmentId,
-      lessonId: lessonId,
-      attendanceStatus: 1,
-      signInTime: '2026-09-21 09:00:00',
-      signOutTime: null
-    });
-  }
+  const errAbandoned = { code: 40086, msg: '学员参训状态已放弃，禁止录入课次考勤' };
+  const fbAbandoned = resolveSignInFeedback(errAbandoned, '王五');
+  assert.strictEqual(fbAbandoned.isSuccess, false);
+  assert.strictEqual(fbAbandoned.message.includes('学员参训状态已放弃'), true);
 
-  // 模拟刷新 roster
-  function mockRefreshRoster(updatedRecord) {
-    roster = roster.map(item => {
-      if (item.enrollmentId === updatedRecord.enrollmentId) {
-        return {
-          ...item,
-          checkinId: updatedRecord.checkinId,
-          attendanceStatus: updatedRecord.attendanceStatus,
-          signInTime: updatedRecord.signInTime,
-          signOutTime: updatedRecord.signOutTime,
-          canSignIn: false, // 已签到禁止再签到
-          canSignOut: true,
-          canAdjust: true
-        };
-      }
-      return item;
-    });
-  }
-
-  mockSignIn(201, 1001).then(res => {
-    mockRefreshRoster(res);
-    assert.strictEqual(roster[0].checkinId, 5001);
-    assert.strictEqual(roster[0].attendanceStatus, 1);
-    assert.strictEqual(roster[0].canSignIn, false, '刷新后签到按钮必须消失');
-    assert.strictEqual(roster[0].canSignOut, true, '刷新后签退按钮必须激活');
-    assert.strictEqual(roster[0].canAdjust, true, '刷新后调整按钮必须激活');
-    console.log('✔ PASS: signIn success refreshes roster to current attendance fact');
-  });
+  console.log('✔ PASS: Production resolveSignInFeedback faithfully reports errors without false success');
 }
 
-// 4. 后端错误真实展示，不得出现假成功
-{
-  function handleSignInError(err) {
-    // 页面逻辑：
-    let displayedMsg = '';
-    let isSuccess = false;
-    if (err && (err.msg || err.message)) {
-      displayedMsg = err.msg || err.message;
-    } else {
-      displayedMsg = '签到操作失败';
-    }
-    return { displayedMsg, isSuccess };
-  }
-
-  const backendError = { code: 400, msg: '课次未关联有效的培训课程计划' };
-  const feedback = handleSignInError(backendError);
-
-  assert.strictEqual(feedback.isSuccess, false);
-  assert.strictEqual(feedback.displayedMsg, '课次未关联有效的培训课程计划');
-  assert.strictEqual(feedback.displayedMsg.includes('成功'), false);
-  console.log('✔ PASS: Backend error is truthfully reported without false success');
-}
-
-// 5. 权限可达性检查：train_admin 具备 checkin 权限与 list 权限
-{
-  const trainAdminPerms = ['train:attendance:list', 'train:attendance:checkin', 'train:attendance:edit', 'train:attendance:export'];
-  const canAccessList = trainAdminPerms.includes('train:attendance:list');
-  const canPerformSignIn = trainAdminPerms.includes('train:attendance:checkin');
-  const canPerformAdjust = trainAdminPerms.includes('train:attendance:edit');
-
-  assert.strictEqual(canAccessList, true, 'train_admin 必须有查看考勤名册权限');
-  assert.strictEqual(canPerformSignIn, true, 'train_admin 必须有课次签到权限');
-  assert.strictEqual(canPerformAdjust, true, 'train_admin 必须有课次调整权限');
-  console.log('✔ PASS: train_admin has full permission reachability');
-}
-
-console.log('ALL FRONTEND ATTENDANCE SIGN-IN ENTRY TESTS PASSED!');
+console.log('ALL PRODUCTION ATTENDANCE POLICY TESTS PASSED!');