diff --git a/internal/creator/integration_test.go b/internal/creator/integration_test.go
index 426ae44..5f46dbe 100644
--- a/internal/creator/integration_test.go
+++ b/internal/creator/integration_test.go
@@ -515,6 +515,85 @@ func TestCreatorPostgresAccountMetricSnapshot(t *testing.T) {
 	}
 }
 
+func TestCreatorPostgresAccountMonitorViewAndCollectionStatus(t *testing.T) {
+	store, phaseAStore, ctx := openCreatorIntegrationStore(t)
+	stamp := fmt.Sprintf("%d", time.Now().UnixNano())
+	accountID := createIntegrationAccount(t, ctx, phaseAStore, "metric"+stamp)
+	now := time.Now().UTC().Truncate(time.Second)
+
+	// 无 checkpoint：采集状态为 pending。
+	status, err := store.GetAccountCollectionStatus(ctx, accountID)
+	if err != nil || status.Works.Status != "pending" || status.Comments.Status != "pending" {
+		t.Fatalf("pending collection status: %+v err=%v", status, err)
+	}
+	// 无作品：监控视图作品数为 0。
+	views, err := store.ListAccountMonitorViews(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	viewFor := func(id string) *AccountMonitorView {
+		for index := range views {
+			if views[index].ID == id {
+				return &views[index]
+			}
+		}
+		return nil
+	}
+	view := viewFor(accountID)
+	if view == nil || view.WorkCount != 0 || view.LatestPublishedAt != nil {
+		t.Fatalf("monitor view without works: %+v", view)
+	}
+
+	// 写入 checkpoint（succeeded + 窗口）与 owned 作品后：状态带下次窗口，视图聚合作品数。
+	lease, err := store.beginCheckpoint(ctx, SourceOwned, accountID, "works", now.Add(-24*time.Hour), now)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := store.finishCheckpoint(ctx, SourceOwned, accountID, "works", lease, "succeeded", ""); err != nil {
+		t.Fatal(err)
+	}
+	published := now.Add(-time.Hour)
+	if _, _, err := store.UpsertWork(ctx, WorkInput{Platform: PlatformDouyin, WorkKey: "monitor-view-" + stamp, SourceType: SourceOwned, SourceID: accountID, Title: "MonitorView", PublishedAt: &published, PublishedAtStatus: "verified"}, now); err != nil {
+		t.Fatal(err)
+	}
+	status, err = store.GetAccountCollectionStatus(ctx, accountID)
+	if err != nil || status.Works.Status != "succeeded" || status.Works.LastCompletedAt == nil ||
+		status.Works.NextWindowStart == nil || status.Works.NextWindowEnd == nil {
+		t.Fatalf("succeeded collection status must carry next window: %+v err=%v", status, err)
+	}
+	if !status.Works.NextWindowStart.Before(*status.Works.NextWindowEnd) {
+		t.Fatalf("next window start must precede end: %+v", status.Works)
+	}
+	view = viewFor(accountID)
+	if view == nil || view.WorkCount != 1 || view.LatestPublishedAt == nil {
+		// 插入作品后重拉视图：聚合来自 creator_work_source 实时 JOIN。
+		views, err = store.ListAccountMonitorViews(ctx)
+		if err != nil {
+			t.Fatal(err)
+		}
+		view = viewFor(accountID)
+		if view == nil || view.WorkCount != 1 || view.LatestPublishedAt == nil {
+			t.Fatalf("monitor view aggregates: %+v", view)
+		}
+	}
+	// failed checkpoint 带错误信息（普通错误落在 failed，不是 blocked）。
+	lease, err = store.beginCheckpoint(ctx, SourceOwned, accountID, "comments", now.Add(-24*time.Hour), now)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := store.failCheckpoint(ctx, SourceOwned, accountID, "comments", lease, errors.New("boom")); err == nil {
+		t.Fatal("failCheckpoint must return the primary error")
+	}
+	status, err = store.GetAccountCollectionStatus(ctx, accountID)
+	if err != nil || status.Comments.Status != "failed" || status.Comments.LastError == "" {
+		t.Fatalf("failed comments checkpoint surfaces error: %+v err=%v", status.Comments, err)
+	}
+	// 空账号 ID 拒绝。
+	if _, err := store.GetAccountCollectionStatus(ctx, " "); !errors.Is(err, ErrInvalid) {
+		t.Fatalf("blank account id must be rejected: err=%v", err)
+	}
+}
+
 func TestCreatorPostgresCollectionAllowsMutedReadAccount(t *testing.T) {
 	store, phaseAStore, ctx := openCreatorIntegrationStore(t)
 	stamp := time.Now().UnixNano()