At Lovesong Coffee, the bold and beautiful gather to sip caffeinated concoctions and peck at laptops in a space as bright and minimal as a stage set. A few blocks away at sleek ramen restaurant Underbelly, a well-tattooed young customer sits at the bar in snug jeans and a crop top displaying the words: “I was drunk the day my mom got out of prison.” Meanwhile, workers put the finishing touches on the LaFayette Hotel, a lavishly redesigned midcentury landmark reopening tomorrow with several on-site restaurants and bars. One room looks like a Parisian salon, another like a ’40s diner, another like an old Mexican church, the light filtered through stained-glass windows. “This is either going to be something really special,” says co-owner Arsalun Tafazoli, “or one of the biggest flameouts in San Diego hospitality history.” This neighborhood, Angelenos, might be the liveliest corner of San Diego that you’ve never heard of, a place with more beer, more resilience and less parking than you’d suspect. To get in on the action, head north of Balboa …