While it cracked Conde Nast Traveler’s list of the 50 Most Beautiful Places in Asia, many people consider the Forbidden City to be a one-way monolith of calculated sameness, like Ikea without the meatballs or the strategically-priced modular furniture. Desperate to change its image as an enormous tourist trap, the palace administration is in the midst of a 10-year project to give the Forbidden City its most intensive makeover since the Qianlong Emperor roamed its halls in the 18th century.…