KABUL — An uneasy calm has settled over the Afghan capital this summer, a wary detente between the country’s stern religious rulers and a deflated, worried populace that is struggling to survive but also relieved that the punishing 20-year war involving foreign troops is over. Both sides have been trying to maintain a precarious balancing act. The Taliban regime, hoping not to further alienate foreign donors, has been sending out muddled signals rather than ironclad orders on controversial topics, especially women’s rights. The citizenry, hoping to get through another hard day without crossing an unpredictable red line, is mostly lying low. But as the first anniversary of the Taliban’s return to power approaches next week, the balancing act has become harder to sustain.