“Hard as nails” is a phrase heard far too often, yet South Korean singer YVES has discovered it carries more than one meaning. Years of navigating the Korean music industry and its challenges have forced the K-pop soloist to develop a thicker skin. In her quest to become “hard as nails,” those hardships have shaped her artistry, inspiring themes of resilience, vulnerability, and self-discovery in her latest release, “Break It,” which debuted on …