Netflix rolled out the red carpet for its own TV shows and movies at its annual Tudum event Saturday, sharing spoilers on everything from the “Bridgerton” spinoff “Queen Charlotte” to “Glass Onion,” the mysterious “Knives Out” sequel, with trailers for fan favorites like “You” and “Dead to Me” sprinkled in for good measure. Here’s everything we learned: The Brannocks are being watchedRyan Murphy, the busiest man in television, unveiled the first trailer for his new show, “The Watcher,” the kind-of true story about a mysterious house in suburban New Jersey where ominous letters keep landing in …