FOR much of the 1990s, San Francisco’s Mission District maintained a precarious balance between its colorful Latino roots and a gritty bohemian subculture. Then came the overfed dot-com years. Rising real estate prices not only threatened the Mission’s working-class enclave, but also its status as the city’s center of all things edgy and artsy. Sleek bars moved next door to divey taquerias. Boutiquey knick-knack shops came in alongside fusty dollar stores. But prosperity did not sap the district of its cultural eclecticism. With a population that is about half Latino, a third white and an estimated 11 percent Asian, the Mission still remains a wonderful mishmash. Where else can you find epicurean vegan cafes, feisty nonprofits and a Central American butcher shop that, for a memorable time, anyway, had women’s undergarments in the window?