fix: 补提交校验、停用检查、入群过滤与按完成时刻清理

internal/app/message/void_finalize_test.go

@@ -99,4 +99,47 @@ VALUES(?,?,?,0,'rejected','left_group',?)`, seq, "bob", nowMs, nowMs)
 	if bodies != 0 {
 		t.Fatalf("body still present: %d", bodies)
 	}
+}
+
+func TestCleanupKeepsRecentlyCompletedOldCreated(t *testing.T) {
+	t.Parallel()
+	lim := defaultTestLimits()
+	lim.RecordRetentionDays = 7
+	app, db := openTestApp(t, lim)
+	insertEndpoint(t, db, "alice", "", 1, 0)
+	insertEndpoint(t, db, "bob", "", 1, 0)
+	ctx := context.Background()
+	nowMs := int64(1_700_000_000_000)
+	created := nowMs - int64(30)*24*3600*1000
+	err := db.Queue.Do(ctx, func(tx *sql.Tx) error {
+		res, e := tx.Exec(`
+INSERT INTO messages(id, sender_id, dest_kind, dest_id, meta, content_type, body_enc,
+  send_at, keep, ttl_seconds, receipt, state, reason, created_at)
+VALUES('old-created','alice','endpoint','bob','{}','text/plain; charset=utf-8','utf8',
+  ?,0,0,1,'completed','',?)`, nowMs, created)
+		if e != nil {
+			return e
+		}
+		seq, e := res.LastInsertId()
+		if e != nil {
+			return e
+		}
+		_, e = tx.Exec(`
+INSERT INTO deliveries(seq, endpoint_id, send_at, keep, state, reason, updated_at)
+VALUES(?,?,?,0,'accepted','',?)`, seq, "bob", nowMs, nowMs)
+		return e
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := app.CleanupOnce(ctx, nowMs); err != nil {
+		t.Fatal(err)
+	}
+	var n int
+	if err := db.Read.QueryRow(`SELECT COUNT(*) FROM messages WHERE id='old-created'`).Scan(&n); err != nil {
+		t.Fatal(err)
+	}
+	if n != 1 {
+		t.Fatalf("recently completed message should remain, n=%d", n)
+	}
 }