feat(ai): 优化拆解重跑与结果展示

apps/web/lib/test-case.test.ts

@@ -43,7 +43,7 @@ test('normalizeTestCase keeps existing categoryId', () => {
   assert.equal(tc.categoryId, 'cat-test-api');
 });
 
-test('normalizeTestCase backfills missing estimateHours', () => {
+test('normalizeTestCase keeps missing executor estimate empty', () => {
   const tc = normalizeTestCase({
     id: 'tc-1',
     caseNo: 'TC-001',
@@ -57,8 +57,45 @@ test('normalizeTestCase backfills missing estimateHours', () => {
     updatedAt: '2026-06-25',
   } as any);
 
-  assert.equal(tc.estimateHours, 0.5);
-  assert.equal(getTestCaseEstimateHours(tc), 0.5);
+  assert.equal(tc.estimateHours, undefined);
+  assert.equal(getTestCaseEstimateHours(tc), 0);
+});
+
+test('getTestCaseEstimateHours prefers executor estimate over AI estimate', () => {
+  const tc = normalizeTestCase({
+    id: 'tc-1',
+    caseNo: 'TC-001',
+    versionId: 'v1',
+    title: '登录正常',
+    priority: 'P2',
+    status: 'pending',
+    categoryId: 'cat-test-api',
+    estimateHours: 0.7,
+    aiEstimateHours: 0.2,
+    createdBy: 'tester',
+    createdAt: '2026-06-25',
+    updatedAt: '2026-06-25',
+  } as any);
+
+  assert.equal(getTestCaseEstimateHours(tc), 0.7);
+});
+
+test('getTestCaseEstimateHours falls back to AI estimate', () => {
+  const tc = normalizeTestCase({
+    id: 'tc-1',
+    caseNo: 'TC-001',
+    versionId: 'v1',
+    title: '登录正常',
+    priority: 'P2',
+    status: 'pending',
+    categoryId: 'cat-test-api',
+    aiEstimateHours: 0.2,
+    createdBy: 'tester',
+    createdAt: '2026-06-25',
+    updatedAt: '2026-06-25',
+  } as any);
+
+  assert.equal(getTestCaseEstimateHours(tc), 0.2);
 });
 
 test('test case status labels use waiting and testing wording', () => {