Ha-Seong Kim has given the Atlanta Braves an encouraging start to his rehab assignment with Double-A Columbus. He has four games under his belt so far, batting .333 with an OPS .871 and a stolen base. In his latest game on Sunday, he went 1-for-4 with a walk, giving him a base hit in three of four games so far. Kim saw action on Sunday as a designated hitter. As he ramps back up, it gives him a chance to get more at-bats. When he's in the field, he's been exiting the game early as if he were in spring training. He's conditioning slowly to play more of the game. Kim is working his way back from a right middle finger injury that required surgery. He’s on a quicker track than initially expected.  At the time of the injury , he was expected to be out until June.  Back in December, the Braves re-signed Ha-Seong Kim  to a one-year, $20 million contract . He had turned down his $16 million player option for the upcoming season. So, the move netted him a modest pay bump for the season.…