More uniquely than perhaps any other city resident, Harley Andrew considers the corners of Chestnut and Worthington streets his entire universe. At 37, he has worked at his father’s auto repair shop on Chestnut Street since he was 8, and began renting a loft apartment at the McIntosh Building just steps away on Worthington Street in September 2012. His father’s shop, Tyre Trak, was leveled by the natural gas blast at Scores Gentleman’s Club one year ago. The Nov. 23 explosion caused millions of dollars in damage; injured 21 people; temporarily or permanently displaced hundreds of downtown residents and interrupted or shuttered dozens of businesses. There were no fatalities, thanks to the gas company employee who hustled everyone out of the building.