A former Tinley Park planning director is not shielded from liability in a lawsuit accusing her of breaching her fiduciary duties to the village, a federal judge has held.In a written opinion last week, U.S. District Judge Sara L. Ellis did not rule on the merits of the allegation that Amy Connolly schemed with a housing developer to change the south suburb’s zoning requirements.But Ellis rejected the argument that Illinois’ common-law doctrine of legislative immunity protects Connolly from the village’s …