BAUTZEN, Germany — Standing on a hillside near this ancient town in eastern Germany, Firas al-Habbal winces as he explains why he doesn’t go “there” anymore. “There” is the center of Bautzen with its cobblestone streets, centuries-old churches and cozy cafes. In particular, it’s the town square where residents recently clashed with a group of young refugees in a burst of violence that made headlines around the world, sparking days of anti-migrant protests by both far-right groups and locals. “Over the past two years, I personally didn’t have a single case where I felt people hated me or foreigners,” said al-Habbal, who came to Germany in 2014 as part of the first big wave of refugees from Syria.