STOCKTON — Betty and Guillermo Garcia have created, repaired and sold jewelry from their little shop for 29 years.Next door, Kevin Jang has kept Stocktonians well-kempt since 2002. Just north of their location are newer businesses in a very old building, including a music store, Filipino deli, a clothing and apparel store, a barber shop and a coffee house.This enclave of small, family-owned businesses occupies the west side of San Joaquin Street between Market and [...]