AMES — The number of lower-priced homes available in Ames has fallen over the past five years as home prices have climbed, putting increased attention on the city’s need for workforce housing. Ames’ median home sale price has risen from roughly $255,000 to $265,000 in 2021 to about $330,000 to $350,000 in 2026, according to data from Movoto, an online real estate listings and housing-market platform. That translates to an increase of roughly 25%…