VANCOUVER — A Columbian story about one woman’s war on weight has led to some local celebrity. Chrisetta Mosley, 38, whose struggle with obesity was featured in a front-page article in July, was invited to speak at the Courtyard Village retirement community and on KATU’s “AM Northwest” earlier this month. She has a book deal in the works, she said, and wants to keep doing motivational speaking. Check out her blog at http://foronceandforallfarewellfatso.blogspot.com; check out The Columbian’s story at http://www.columbian.com/news/2011/jul/13/woman-packs-on-happiness-as-she-sheds-pounds.