Michael Crabtree lightly practices after coming off PUP list

The 49ers don’t need to worry about violating PUP rules anymore with Michael Crabtree. The team activated Crabtree on Tuesday, then watched as he practiced officially for the first time in the Jim Harbaugh era. Barely. Matt Maiocco of CSNBayArea.com reports that Crabtree didn’t really do anything different than on Monday, when caught a few…