(The writer is the author of “Curfewed Night,” an account of the conflict in Kashmir) .SRINAGAR, Kashmir — On the morning of Aug. 21, during the foremost Muslim festival of Eid al-Fitr, I drove through Srinagar, the summer capital of the disputed Indian-controlled region of Kashmir. A testing month of fasting had just ended, and freshly washed faces smiled on their way to ceremonial prayers. Children in bright clothes bought for the occasion hovered merrily…