In Beijing, business after business is bolted shut. The authorities won't use the word, but this city is essentially in lockdown. In a number of districts across the capital, all non-essential shops are shut, restaurants and cafes are open for takeaway only and people are being asked to work from home. COVID cases here have tripled in a week, they are at the highest level ever recorded. While many have greeted the latest rules with weary acceptance there is clearly a price being paid by people for nearly three years of restrictions. Leading shopping districts stood eerily silent and traditional…