The number of beds available for the homeless in the Sacramento region during the cold-weather season is lower this Thanksgiving week than it was last year, according to Tim Brown, director of the Ending Homelessness Initiative. In addition, a Rancho Cordova city official expressed skepticism Monday about a plan to provide beds for 105 homeless people in that city. However, a multiagency task force still plans to achieve its goal of providing 269 winter shelter beds, Brown said in an interview.  As of Friday, 52 winter shelter beds were available for the homeless. This week, the task force expects to offer 82 beds because 30 motel vouchers are available, Brown said.    Still, at this tim