feat(ai): 优化拆解目标和负责人推荐

apps/web/lib/ai-assignee-recommendation.test.ts

@@ -0,0 +1,50 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import { resolveRecommendedAssignee } from './ai-assignee-recommendation';
+import type { VersionMember } from './derive';
+
+const members: VersionMember[] = [
+  { name: 'Alice', role: 'frontend' },
+  { name: 'Bob', role: 'testing' },
+];
+
+test('resolves an AI recommended assignee only when the name is a current version member', () => {
+  const recommendation = resolveRecommendedAssignee(
+    {
+      recommendedAssigneeName: 'Alice',
+      recommendedAssigneeReason: 'Frontend implementation matches this member role.',
+    },
+    members,
+  );
+
+  assert.deepEqual(recommendation, {
+    name: 'Alice',
+    role: 'frontend',
+    reason: 'Frontend implementation matches this member role.',
+  });
+});
+
+test('ignores hallucinated recommended assignee names', () => {
+  const recommendation = resolveRecommendedAssignee(
+    {
+      recommendedAssigneeName: 'Carol',
+      recommendedAssigneeReason: 'Model invented a person.',
+    },
+    members,
+  );
+
+  assert.equal(recommendation, undefined);
+});
+
+test('does not resolve case-mismatched member names', () => {
+  const recommendation = resolveRecommendedAssignee(
+    {
+      recommendedAssigneeName: 'alice',
+      recommendedAssigneeReason: 'Lowercase is not an exact member name.',
+    },
+    members,
+  );
+
+  assert.equal(recommendation, undefined);
+});