test(ai-review): 補 comment 只標註新問題與對話收斂 duplicate 分支測試

app/resolve.test.js

@@ -171,6 +171,23 @@ describe('reconcileConversations', () => {
     assert.deepEqual(result.carriedFindings.map(f => f.suggestion), ['fix two']);
   });
 
+  it('resolves (not carries) an unresolved conversation already present in old findings', async () => {
+    const resolvedIds = [];
+    const deps = baseDeps();
+    deps.judge = async (items) => items.map(it => ({ idx: it.idx, resolved: false })); // 全部未修復
+    deps.resolveComment = async (id) => { resolvedIds.push(id); return { ok: true }; };
+    // b.js 的問題已存在於舊問題（檔案＋建議簽章相符，行號不同不影響）→ 應解決對話、不加回
+    deps.oldFindings = [{ location: 'b.js:99', suggestion: 'fix two' }];
+
+    const result = await reconcileConversations(deps);
+
+    assert.deepEqual(resolvedIds, [2]); // 僅 b.js(id=2) 因已存在舊問題而被 resolve
+    assert.equal(result.duplicateCount, 1);
+    assert.equal(result.resolvedCount, 0);
+    assert.deepEqual(result.carriedFindings.map(f => f.suggestion), ['fix one']); // a.js 不在舊問題 → 加回
+    assert.deepEqual(result.resolvedFindings, []); // duplicate 不從舊問題移除
+  });
+
   it('carries the conversation back when the resolve API call fails', async () => {
     const deps = baseDeps();
     deps.judge = async (items) => items.map(it => ({ idx: it.idx, resolved: true }));